diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/README.md b/lib/node_modules/@stdlib/blas/ext/base/swhere/README.md
new file mode 100644
index 000000000000..159ad2331303
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/README.md
@@ -0,0 +1,380 @@
+
+
+# swhere
+
+> Take elements from one of two single-precision floating-point strided arrays depending on a condition.
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var swhere = require( '@stdlib/blas/ext/base/swhere' );
+```
+
+#### swhere( N, condition, strideC, x, strideX, y, strideY, out, strideOut )
+
+Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+
+```javascript
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+
+var condition = new BooleanArray( [ true, false, true ] );
+var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+// out => [ 1.0, 5.0, 3.0 ]
+```
+
+The function has the following parameters:
+
+- **N**: number of indexed elements.
+- **condition**: condition [`BooleanArray`][@stdlib/array/bool].
+- **strideC**: stride length for `condition`.
+- **x**: first input [`Float32Array`][@stdlib/array/float32].
+- **strideX**: stride length for `x`.
+- **y**: second input [`Float32Array`][@stdlib/array/float32].
+- **strideY**: stride length for `y`.
+- **out**: output [`Float32Array`][@stdlib/array/float32].
+- **strideOut**: stride length for `out`.
+
+The `N` and stride parameters determine which elements in the strided arrays are accessed at runtime. For example, to select from every other element:
+
+```javascript
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+
+var condition = new BooleanArray( [ true, false, false, true, true, false ] );
+var x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var y = new Float32Array( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+swhere( 3, condition, 2, x, 2, y, 2, out, 1 );
+// out => [ 1.0, 9.0, 5.0 ]
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+
+
+```javascript
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+
+// Initial arrays...
+var condition0 = new BooleanArray( [ false, true, false, true, false, true ] );
+var x0 = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var y0 = new Float32Array( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+var out0 = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+// Create offset views...
+var condition1 = new BooleanArray( condition0.buffer, condition0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+var x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+var y1 = new Float32Array( y0.buffer, y0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+var out1 = new Float32Array( out0.buffer, out0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+swhere( 3, condition1, 2, x1, 2, y1, 2, out1, 1 );
+// out0 => [ 0.0, 2.0, 4.0, 6.0, 0.0, 0.0 ]
+```
+
+
+
+#### swhere.ndarray( N, condition, strideC, offsetC, x, strideX, offsetX, y, strideY, offsetY, out, strideOut, offsetOut )
+
+
+
+Takes elements from one of two single-precision floating-point strided arrays depending on a condition using alternative indexing semantics.
+
+```javascript
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+
+var condition = new BooleanArray( [ true, false, true ] );
+var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+// out => [ 1.0, 5.0, 3.0 ]
+```
+
+The function has the following additional parameters:
+
+- **offsetC**: starting index for `condition`.
+- **offsetX**: starting index for `x`.
+- **offsetY**: starting index for `y`.
+- **offsetOut**: starting index for `out`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, offset parameters support indexing semantics based on starting indices. For example, to select from every other element starting from the second element:
+
+```javascript
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+
+var condition = new BooleanArray( [ false, true, false, false, false, true ] );
+var x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var y = new Float32Array( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+swhere.ndarray( 3, condition, 2, 1, x, 2, 1, y, 2, 1, out, 1, 0 );
+// out => [ 2.0, 10.0, 6.0 ]
+```
+
+
+
+
+
+
+
+## Notes
+
+- If `N <= 0`, both functions return `out` unchanged.
+- The `condition` argument must be a [`BooleanArray`][@stdlib/array/bool].
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+var swhere = require( '@stdlib/blas/ext/base/swhere' );
+
+var cbuf = bernoulli( 20, 0.5, {
+ 'dtype': 'uint8'
+});
+var condition = new BooleanArray( cbuf.buffer );
+console.log( condition );
+var x = uniform( 20, 0.0, 100.0, {
+ 'dtype': 'float32'
+});
+console.log( x );
+var y = uniform( 20, -100.0, 0.0, {
+ 'dtype': 'float32'
+});
+console.log( y );
+
+var out = new Float32Array( condition.length );
+console.log( out );
+
+swhere( condition.length, condition, 1, x, 1, y, 1, out, 1 );
+console.log( out );
+```
+
+
+
+
+
+
+
+* * *
+
+
+
+## C APIs
+
+
+
+
+
+
+
+
+
+
+
+### Usage
+
+```c
+#include "stdlib/blas/ext/base/swhere.h"
+```
+
+
+
+#### stdlib_strided_swhere( N, \*Condition, strideC, \*X, strideX, \*Y, strideY, \*Out, strideOut )
+
+
+
+Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+
+```c
+#include
+
+const bool condition[] = { true, false, true };
+const float x[] = { 1.0f, 2.0f, 3.0f };
+const float y[] = { 4.0f, 5.0f, 6.0f };
+float out[] = { 0.0f, 0.0f, 0.0f };
+
+stdlib_strided_swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements.
+- **Condition**: `[in] bool*` condition array.
+- **strideC**: `[in] CBLAS_INT` stride length for `Condition`.
+- **X**: `[in] float*` first input array.
+- **strideX**: `[in] CBLAS_INT` stride length for `X`.
+- **Y**: `[in] float*` second input array.
+- **strideY**: `[in] CBLAS_INT` stride length for `Y`.
+- **Out**: `[out] float*` output array.
+- **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
+
+```c
+void stdlib_strided_swhere( const CBLAS_INT N, const bool *Condition, const CBLAS_INT strideC, const float *X, const CBLAS_INT strideX, const float *Y, const CBLAS_INT strideY, float *Out, const CBLAS_INT strideOut );
+```
+
+
+
+#### stdlib_strided_swhere_ndarray( N, \*Condition, strideC, offsetC, \*X, strideX, offsetX, \*Y, strideY, offsetY, \*Out, strideOut, offsetOut )
+
+
+
+Takes elements from one of two single-precision floating-point strided arrays depending on a condition using alternative indexing semantics.
+
+```c
+#include
+
+const bool condition[] = { true, false, true };
+const float x[] = { 1.0f, 2.0f, 3.0f };
+const float y[] = { 4.0f, 5.0f, 6.0f };
+float out[] = { 0.0f, 0.0f, 0.0f };
+
+stdlib_strided_swhere_ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements.
+- **Condition**: `[in] bool*` condition array.
+- **strideC**: `[in] CBLAS_INT` stride length for `Condition`.
+- **offsetC**: `[in] CBLAS_INT` starting index for `Condition`.
+- **X**: `[in] float*` first input array.
+- **strideX**: `[in] CBLAS_INT` stride length for `X`.
+- **offsetX**: `[in] CBLAS_INT` starting index for `X`.
+- **Y**: `[in] float*` second input array.
+- **strideY**: `[in] CBLAS_INT` stride length for `Y`.
+- **offsetY**: `[in] CBLAS_INT` starting index for `Y`.
+- **Out**: `[out] float*` output array.
+- **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
+- **offsetOut**: `[in] CBLAS_INT` starting index for `Out`.
+
+```c
+void stdlib_strided_swhere_ndarray( const CBLAS_INT N, const bool *Condition, const CBLAS_INT strideC, const CBLAS_INT offsetC, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const float *Y, const CBLAS_INT strideY, const CBLAS_INT offsetY, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+### Examples
+
+```c
+#include "stdlib/blas/ext/base/swhere.h"
+#include
+#include
+
+int main( void ) {
+ // Create strided arrays:
+ const bool condition[] = { true, false, true, false, true };
+ const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f };
+ const float y[] = { 6.0f, 7.0f, 8.0f, 9.0f, 10.0f };
+ float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+ // Specify the number of indexed elements:
+ const int N = 5;
+
+ // Specify stride lengths:
+ const int strideC = 1;
+ const int strideX = 1;
+ const int strideY = 1;
+ const int strideOut = 1;
+
+ // Select from `x` or `y` based on the condition array:
+ stdlib_strided_swhere( N, condition, strideC, x, strideX, y, strideY, out, strideOut );
+
+ // Print the result:
+ for ( int i = 0; i < N; i++ ) {
+ printf( "out[ %i ] = %f\n", i, out[ i ] );
+ }
+}
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[@stdlib/array/bool]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/bool
+
+[@stdlib/array/float32]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/float32
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.js
new file mode 100644
index 000000000000..701b6222dc46
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.js
@@ -0,0 +1,115 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+var isFloat32Array = require( '@stdlib/assert/is-float32array' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var swhere = require( './../lib/swhere.js' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var condition;
+ var cbuf;
+ var out;
+ var x;
+ var y;
+
+ cbuf = bernoulli( len, 0.5, {
+ 'dtype': 'uint8'
+ });
+ condition = new BooleanArray( cbuf.buffer );
+ out = new Float32Array( len );
+ x = uniform( len, -100.0, 100.0, {
+ 'dtype': 'float32'
+ });
+ y = uniform( len, -100.0, 100.0, {
+ 'dtype': 'float32'
+ });
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ v = swhere( len, condition, 1, x, 1, y, 1, out, 1 );
+ if ( !isFloat32Array( v ) ) {
+ b.fail( 'should return a Float32Array' );
+ }
+ }
+ b.toc();
+ if ( !isFloat32Array( v ) ) {
+ b.fail( 'should return a Float32Array' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..eb9d215c6f2c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.native.js
@@ -0,0 +1,124 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+var isFloat32Array = require( '@stdlib/assert/is-float32array' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var swhere = tryRequire( resolve( __dirname, './../lib/swhere.native.js' ) );
+var opts = {
+ 'skip': ( swhere instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var condition;
+ var cbuf;
+ var out;
+ var x;
+ var y;
+
+ cbuf = bernoulli( len, 0.5, {
+ 'dtype': 'uint8'
+ });
+ condition = new BooleanArray( cbuf.buffer );
+ out = new Float32Array( len );
+ x = uniform( len, -100.0, 100.0, {
+ 'dtype': 'float32'
+ });
+ y = uniform( len, -100.0, 100.0, {
+ 'dtype': 'float32'
+ });
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ v = swhere( len, condition, 1, x, 1, y, 1, out, 1 );
+ if ( !isFloat32Array( v ) ) {
+ b.fail( 'should return a Float32Array' );
+ }
+ }
+ b.toc();
+ if ( !isFloat32Array( v ) ) {
+ b.fail( 'should return a Float32Array' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s::native:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..5443ebb12667
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.ndarray.js
@@ -0,0 +1,115 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+var isFloat32Array = require( '@stdlib/assert/is-float32array' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var swhere = require( './../lib/ndarray.js' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var condition;
+ var cbuf;
+ var out;
+ var x;
+ var y;
+
+ cbuf = bernoulli( len, 0.5, {
+ 'dtype': 'uint8'
+ });
+ condition = new BooleanArray( cbuf.buffer );
+ out = new Float32Array( len );
+ x = uniform( len, -100.0, 100.0, {
+ 'dtype': 'float32'
+ });
+ y = uniform( len, -100.0, 100.0, {
+ 'dtype': 'float32'
+ });
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ v = swhere( len, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ if ( !isFloat32Array( v ) ) {
+ b.fail( 'should return a Float32Array' );
+ }
+ }
+ b.toc();
+ if ( !isFloat32Array( v ) ) {
+ b.fail( 'should return a Float32Array' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s:ndarray:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.ndarray.native.js
new file mode 100644
index 000000000000..416380e6d19e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/benchmark.ndarray.native.js
@@ -0,0 +1,124 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+var isFloat32Array = require( '@stdlib/assert/is-float32array' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var swhere = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( swhere instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var condition;
+ var cbuf;
+ var out;
+ var x;
+ var y;
+
+ cbuf = bernoulli( len, 0.5, {
+ 'dtype': 'uint8'
+ });
+ condition = new BooleanArray( cbuf.buffer );
+ out = new Float32Array( len );
+ x = uniform( len, -100.0, 100.0, {
+ 'dtype': 'float32'
+ });
+ y = uniform( len, -100.0, 100.0, {
+ 'dtype': 'float32'
+ });
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ v = swhere( len, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ if ( !isFloat32Array( v ) ) {
+ b.fail( 'should return a Float32Array' );
+ }
+ }
+ b.toc();
+ if ( !isFloat32Array( v ) ) {
+ b.fail( 'should return a Float32Array' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/c/Makefile
new file mode 100644
index 000000000000..0756dc7da20a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.length.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/c/benchmark.length.c
new file mode 100644
index 000000000000..4b14e34c6e0e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/benchmark/c/benchmark.length.c
@@ -0,0 +1,216 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/swhere.h"
+#include
+#include
+#include
+#include
+#include
+#include
+
+#define NAME "swhere"
+#define ITERATIONS 10000000
+#define REPEATS 3
+#define MIN 1
+#define MAX 6
+
+/**
+* Prints the TAP version.
+*/
+static void print_version( void ) {
+ printf( "TAP version 13\n" );
+}
+
+/**
+* Prints the TAP summary.
+*
+* @param total total number of tests
+* @param passing total number of passing tests
+*/
+static void print_summary( int total, int passing ) {
+ printf( "#\n" );
+ printf( "1..%d\n", total ); // TAP plan
+ printf( "# total %d\n", total );
+ printf( "# pass %d\n", passing );
+ printf( "#\n" );
+ printf( "# ok\n" );
+}
+
+/**
+* Prints benchmarks results.
+*
+* @param iterations number of iterations
+* @param elapsed elapsed time in seconds
+*/
+static void print_results( int iterations, double elapsed ) {
+ double rate = (double)iterations / elapsed;
+ printf( " ---\n" );
+ printf( " iterations: %d\n", iterations );
+ printf( " elapsed: %0.9f\n", elapsed );
+ printf( " rate: %0.9f\n", rate );
+ printf( " ...\n" );
+}
+
+/**
+* Returns a clock time.
+*
+* @return clock time
+*/
+static double tic( void ) {
+ struct timeval now;
+ gettimeofday( &now, NULL );
+ return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+/**
+* Generates a random number on the interval [0,1).
+*
+* @return random number
+*/
+static float rand_float( void ) {
+ int r = rand();
+ return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark1( int iterations, int len ) {
+ double elapsed;
+ bool *condition;
+ float *x;
+ float *y;
+ float *out;
+ double t;
+ int i;
+
+ condition = (bool *) malloc( len * sizeof( bool ) );
+ x = (float *) malloc( len * sizeof( float ) );
+ y = (float *) malloc( len * sizeof( float ) );
+ out = (float *) malloc( len * sizeof( float ) );
+ for ( i = 0; i < len; i++ ) {
+ condition[ i ] = ( rand_float() < 0.5f );
+ x[ i ] = ( rand_float()*200.0f ) - 100.0f;
+ y[ i ] = ( rand_float()*200.0f ) - 100.0f;
+ out[ i ] = 0.0f;
+ }
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ stdlib_strided_swhere( len, condition, 1, x, 1, y, 1, out, 1 );
+ if ( out[ 0 ] != out[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( out[ 0 ] != out[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ }
+ free( condition );
+ free( x );
+ free( y );
+ free( out );
+ return elapsed;
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark2( int iterations, int len ) {
+ double elapsed;
+ bool *condition;
+ float *x;
+ float *y;
+ float *out;
+ double t;
+ int i;
+
+ condition = (bool *) malloc( len * sizeof( bool ) );
+ x = (float *) malloc( len * sizeof( float ) );
+ y = (float *) malloc( len * sizeof( float ) );
+ out = (float *) malloc( len * sizeof( float ) );
+ for ( i = 0; i < len; i++ ) {
+ condition[ i ] = ( rand_float() < 0.5f );
+ x[ i ] = ( rand_float()*200.0f ) - 100.0f;
+ y[ i ] = ( rand_float()*200.0f ) - 100.0f;
+ out[ i ] = 0.0f;
+ }
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ stdlib_strided_swhere_ndarray( len, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ if ( out[ 0 ] != out[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( out[ 0 ] != out[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ }
+ free( condition );
+ free( x );
+ free( y );
+ free( out );
+ return elapsed;
+}
+
+/**
+* Main execution sequence.
+*/
+int main( void ) {
+ double elapsed;
+ int count;
+ int iter;
+ int len;
+ int i;
+ int j;
+
+ // Use the current time to seed the random number generator:
+ srand( time( NULL ) );
+
+ print_version();
+ count = 0;
+ for ( i = MIN; i <= MAX; i++ ) {
+ len = pow( 10, i );
+ iter = ITERATIONS / pow( 10, i-1 );
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::%s:len=%d\n", NAME, len );
+ elapsed = benchmark1( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::%s:ndarray:len=%d\n", NAME, len );
+ elapsed = benchmark2( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ }
+ print_summary( count, count );
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/binding.gyp b/lib/node_modules/@stdlib/blas/ext/base/swhere/binding.gyp
new file mode 100644
index 000000000000..0d6508a12e99
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/binding.gyp
@@ -0,0 +1,170 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A `.gyp` file for building a Node.js native add-on.
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # List of files to include in this file:
+ 'includes': [
+ './include.gypi',
+ ],
+
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Target name should match the add-on export name:
+ 'addon_target_name%': 'addon',
+
+ # Set variables based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="win"',
+ {
+ # Define the object file suffix:
+ 'obj': 'obj',
+ },
+ {
+ # Define the object file suffix:
+ 'obj': 'o',
+ }
+ ], # end condition (OS=="win")
+ ], # end conditions
+ }, # end variables
+
+ # Define compile targets:
+ 'targets': [
+
+ # Target to generate an add-on:
+ {
+ # The target name should match the add-on export name:
+ 'target_name': '<(addon_target_name)',
+
+ # Define dependencies:
+ 'dependencies': [],
+
+ # Define directories which contain relevant include headers:
+ 'include_dirs': [
+ # Local include directory:
+ '<@(include_dirs)',
+ ],
+
+ # List of source files:
+ 'sources': [
+ '<@(src_files)',
+ ],
+
+ # Settings which should be applied when a target's object files are used as linker input:
+ 'link_settings': {
+ # Define libraries:
+ 'libraries': [
+ '<@(libraries)',
+ ],
+
+ # Define library directories:
+ 'library_dirs': [
+ '<@(library_dirs)',
+ ],
+ },
+
+ # C/C++ compiler flags:
+ 'cflags': [
+ # Enable commonly used warning options:
+ '-Wall',
+
+ # Aggressive optimization:
+ '-O3',
+ ],
+
+ # C specific compiler flags:
+ 'cflags_c': [
+ # Specify the C standard to which a program is expected to conform:
+ '-std=c99',
+ ],
+
+ # C++ specific compiler flags:
+ 'cflags_cpp': [
+ # Specify the C++ standard to which a program is expected to conform:
+ '-std=c++11',
+ ],
+
+ # Linker flags:
+ 'ldflags': [],
+
+ # Apply conditions based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="mac"',
+ {
+ # Linker flags:
+ 'ldflags': [
+ '-undefined dynamic_lookup',
+ '-Wl,-no-pie',
+ '-Wl,-search_paths_first',
+ ],
+ },
+ ], # end condition (OS=="mac")
+ [
+ 'OS!="win"',
+ {
+ # C/C++ flags:
+ 'cflags': [
+ # Generate platform-independent code:
+ '-fPIC',
+ ],
+ },
+ ], # end condition (OS!="win")
+ ], # end conditions
+ }, # end target <(addon_target_name)
+
+ # Target to copy a generated add-on to a standard location:
+ {
+ 'target_name': 'copy_addon',
+
+ # Declare that the output of this target is not linked:
+ 'type': 'none',
+
+ # Define dependencies:
+ 'dependencies': [
+ # Require that the add-on be generated before building this target:
+ '<(addon_target_name)',
+ ],
+
+ # Define a list of actions:
+ 'actions': [
+ {
+ 'action_name': 'copy_addon',
+ 'message': 'Copying addon...',
+
+ # Explicitly list the inputs in the command-line invocation below:
+ 'inputs': [],
+
+ # Declare the expected outputs:
+ 'outputs': [
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+
+ # Define the command-line invocation:
+ 'action': [
+ 'cp',
+ '<(PRODUCT_DIR)/<(addon_target_name).node',
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+ },
+ ], # end actions
+ }, # end target copy_addon
+ ], # end targets
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/repl.txt
new file mode 100644
index 000000000000..cda3317337f5
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/repl.txt
@@ -0,0 +1,153 @@
+
+{{alias}}( N, condition, strideC, x, strideX, y, strideY, out, strideOut )
+ Takes elements from one of two single-precision floating-point strided
+ arrays depending on a condition.
+
+ The `N` and stride parameters determine which elements in the strided arrays
+ are accessed at runtime.
+
+ Indexing is relative to the first index. To introduce an offset, use a typed
+ array view.
+
+ If `N <= 0`, the function returns `out` unchanged.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ condition: BooleanArray
+ Condition array.
+
+ strideC: integer
+ Stride length for `condition`.
+
+ x: Float32Array
+ First input array.
+
+ strideX: integer
+ Stride length for `x`.
+
+ y: Float32Array
+ Second input array.
+
+ strideY: integer
+ Stride length for `y`.
+
+ out: Float32Array
+ Output array.
+
+ strideOut: integer
+ Stride length for `out`.
+
+ Returns
+ -------
+ out: Float32Array
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var c = new {{alias:@stdlib/array/bool}}( [ true, false, true ] );
+ > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, 2.0, 3.0 ] );
+ > var y = new {{alias:@stdlib/array/float32}}( [ 4.0, 5.0, 6.0 ] );
+ > var out = new {{alias:@stdlib/array/float32}}( [ 0.0, 0.0, 0.0 ] );
+ > {{alias}}( 3, c, 1, x, 1, y, 1, out, 1 )
+ [ 1.0, 5.0, 3.0 ]
+
+ // Using `N` and stride parameters:
+ > c = new {{alias:@stdlib/array/bool}}( [ true, false, false, true, true, false ] );
+ > x = new {{alias:@stdlib/array/float32}}( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ > y = new {{alias:@stdlib/array/float32}}( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+ > out = new {{alias:@stdlib/array/float32}}( [ 0.0, 0.0, 0.0 ] );
+ > {{alias}}( 3, c, 2, x, 2, y, 2, out, 1 )
+ [ 1.0, 9.0, 5.0 ]
+
+ // Using view offsets:
+ > var c0 = new {{alias:@stdlib/array/bool}}( [ false, true, false, true ] );
+ > var x0 = new {{alias:@stdlib/array/float32}}( [ 1.0, 2.0, 3.0, 4.0 ] );
+ > var y0 = new {{alias:@stdlib/array/float32}}( [ 5.0, 6.0, 7.0, 8.0 ] );
+ > var o0 = new {{alias:@stdlib/array/float32}}( [ 0.0, 0.0, 0.0, 0.0 ] );
+ > var c1 = new {{alias:@stdlib/array/bool}}( c0.buffer, c0.BYTES_PER_ELEMENT*1 );
+ > var x1 = new {{alias:@stdlib/array/float32}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
+ > var y1 = new {{alias:@stdlib/array/float32}}( y0.buffer, y0.BYTES_PER_ELEMENT*1 );
+ > var o1 = new {{alias:@stdlib/array/float32}}( o0.buffer, o0.BYTES_PER_ELEMENT*1 );
+ > {{alias}}( 2, c1, 1, x1, 1, y1, 1, o1, 1 )
+ [ 2.0, 7.0, 0.0 ]
+
+
+{{alias}}.ndarray( N, c, sc, oc, x, sx, ox, y, sy, oy, o, so, oo )
+ Takes elements from one of two single-precision floating-point strided
+ arrays depending on a condition using alternative indexing semantics.
+
+ While typed array views mandate a view offset based on the underlying
+ buffer, the offset parameters support indexing semantics based on starting
+ indices.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ c: BooleanArray
+ Condition array.
+
+ sc: integer
+ Stride length for `c`.
+
+ oc: integer
+ Starting index for `c`.
+
+ x: Float32Array
+ First input array.
+
+ sx: integer
+ Stride length for `x`.
+
+ ox: integer
+ Starting index for `x`.
+
+ y: Float32Array
+ Second input array.
+
+ sy: integer
+ Stride length for `y`.
+
+ oy: integer
+ Starting index for `y`.
+
+ o: Float32Array
+ Output array.
+
+ so: integer
+ Stride length for `o`.
+
+ oo: integer
+ Starting index for `o`.
+
+ Returns
+ -------
+ o: Float32Array
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var c = new {{alias:@stdlib/array/bool}}( [ true, false, true ] );
+ > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, 2.0, 3.0 ] );
+ > var y = new {{alias:@stdlib/array/float32}}( [ 4.0, 5.0, 6.0 ] );
+ > var o = new {{alias:@stdlib/array/float32}}( [ 0.0, 0.0, 0.0 ] );
+ > {{alias}}.ndarray( 3, c, 1, 0, x, 1, 0, y, 1, 0, o, 1, 0 )
+ [ 1.0, 5.0, 3.0 ]
+
+ // Advanced indexing:
+ > c = new {{alias:@stdlib/array/bool}}( [ false, true, false, false, false, true ] );
+ > x = new {{alias:@stdlib/array/float32}}( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ > y = new {{alias:@stdlib/array/float32}}( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+ > o = new {{alias:@stdlib/array/float32}}( [ 0.0, 0.0, 0.0 ] );
+ > {{alias}}.ndarray( 3, c, 2, 1, x, 2, 1, y, 2, 1, o, -1, o.length-1 )
+ [ 6.0, 10.0, 2.0 ]
+
+ See Also
+ --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/types/index.d.ts
new file mode 100644
index 000000000000..7cfc76388266
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/types/index.d.ts
@@ -0,0 +1,129 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+///
+
+import { BooleanArray } from '@stdlib/types/array';
+
+/**
+* Interface describing `swhere`.
+*/
+interface Routine {
+ /**
+ * Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+ *
+ * @param N - number of indexed elements
+ * @param condition - condition array
+ * @param strideC - stride length for `condition`
+ * @param x - first input array
+ * @param strideX - stride length for `x`
+ * @param y - second input array
+ * @param strideY - stride length for `y`
+ * @param out - output array
+ * @param strideOut - stride length for `out`
+ * @returns output array
+ *
+ * @example
+ * var BooleanArray = require( '@stdlib/array/bool' );
+ *
+ * var condition = new BooleanArray( [ true, false, true ] );
+ * var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ * var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ * var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ *
+ * swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+ * // out => [ 1.0, 5.0, 3.0 ]
+ */
+ ( N: number, condition: BooleanArray, strideC: number, x: Float32Array, strideX: number, y: Float32Array, strideY: number, out: Float32Array, strideOut: number ): Float32Array;
+
+ /**
+ * Takes elements from one of two single-precision floating-point strided arrays depending on a condition using alternative indexing semantics.
+ *
+ * @param N - number of indexed elements
+ * @param condition - condition array
+ * @param strideC - stride length for `condition`
+ * @param offsetC - starting index for `condition`
+ * @param x - first input array
+ * @param strideX - stride length for `x`
+ * @param offsetX - starting index for `x`
+ * @param y - second input array
+ * @param strideY - stride length for `y`
+ * @param offsetY - starting index for `y`
+ * @param out - output array
+ * @param strideOut - stride length for `out`
+ * @param offsetOut - starting index for `out`
+ * @returns output array
+ *
+ * @example
+ * var BooleanArray = require( '@stdlib/array/bool' );
+ *
+ * var condition = new BooleanArray( [ true, false, true ] );
+ * var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ * var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ * var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ *
+ * swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ * // out => [ 1.0, 5.0, 3.0 ]
+ */
+ ndarray( N: number, condition: BooleanArray, strideC: number, offsetC: number, x: Float32Array, strideX: number, offsetX: number, y: Float32Array, strideY: number, offsetY: number, out: Float32Array, strideOut: number, offsetOut: number ): Float32Array;
+}
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+*
+* @param N - number of indexed elements
+* @param condition - condition array
+* @param strideC - stride length for `condition`
+* @param x - first input array
+* @param strideX - stride length for `x`
+* @param y - second input array
+* @param strideY - stride length for `y`
+* @param out - output array
+* @param strideOut - stride length for `out`
+* @returns output array
+*
+* @example
+* var BooleanArray = require( '@stdlib/array/bool' );
+*
+* var condition = new BooleanArray( [ true, false, true ] );
+* var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+* var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+*
+* swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+* // out => [ 1.0, 5.0, 3.0 ]
+*
+* @example
+* var BooleanArray = require( '@stdlib/array/bool' );
+*
+* var condition = new BooleanArray( [ true, false, true ] );
+* var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+* var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+*
+* swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+* // out => [ 1.0, 5.0, 3.0 ]
+*/
+declare var swhere: Routine;
+
+
+// EXPORTS //
+
+export = swhere;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/types/test.ts
new file mode 100644
index 000000000000..c1536fb0862b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/docs/types/test.ts
@@ -0,0 +1,459 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import BooleanArray = require( '@stdlib/array/bool' );
+import swhere = require( './index' );
+
+
+// TESTS //
+
+// The function returns a Float32Array...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( 3, condition, 1, x, 1, y, 1, out, 1 ); // $ExpectType Float32Array
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( '10', condition, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( true, condition, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( false, condition, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( null, condition, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( undefined, condition, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( [], condition, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( {}, condition, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( ( x: number ): number => x, condition, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a BooleanArray...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( 3, '10', 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, 10, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, true, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, false, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, null, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, undefined, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, [ '1' ], 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, {}, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, ( x: number ): number => x, 1, x, 1, y, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( 3, condition, '10', x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, true, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, false, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, null, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, undefined, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, [], x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, {}, x, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, ( x: number ): number => x, x, 1, y, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a Float32Array...
+{
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( 3, condition, 1, '10', 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, 10, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, true, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, false, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, null, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, undefined, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, [ '1' ], 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, {}, 1, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, ( x: number ): number => x, 1, y, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( 3, condition, 1, x, '10', y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, true, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, false, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, null, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, undefined, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, [], y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, {}, y, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, ( x: number ): number => x, y, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( 3, condition, 1, x, 1, '10', 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, 10, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, true, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, false, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, null, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, undefined, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, [ '1' ], 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, {}, 1, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, ( x: number ): number => x, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a seventh argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( 3, condition, 1, x, 1, y, '10', out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, true, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, false, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, null, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, undefined, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, [], out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, {}, out, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, ( x: number ): number => x, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eighth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+
+ swhere( 3, condition, 1, x, 1, y, 1, '10', 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, 10, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, true, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, false, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, null, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, undefined, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, [ '1' ], 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, {}, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a ninth argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere( 3, condition, 1, x, 1, y, 1, out, '10' ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out, true ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out, false ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out, null ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out, undefined ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out, [] ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out, {} ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere(); // $ExpectError
+ swhere( 3 ); // $ExpectError
+ swhere( 3, condition ); // $ExpectError
+ swhere( 3, condition, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x ); // $ExpectError
+ swhere( 3, condition, 1, x, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1 ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out ); // $ExpectError
+ swhere( 3, condition, 1, x, 1, y, 1, out, 1, 10 ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a Float32Array...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectType Float32Array
+}
+
+// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( '10', condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( true, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( false, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( null, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( undefined, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( [], condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( {}, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( ( x: number ): number => x, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a BooleanArray...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, '10', 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, 10, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, true, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, false, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, null, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, undefined, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, [ '1' ], 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, {}, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, ( x: number ): number => x, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, '10', 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, true, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, false, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, null, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, undefined, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, [], 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, {}, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, ( x: number ): number => x, 0, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, '10', x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, true, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, false, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, null, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, undefined, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, [], x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, {}, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, ( x: number ): number => x, x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a Float32Array...
+{
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, '10', 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, 10, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, true, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, false, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, null, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, undefined, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, [ '1' ], 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, {}, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, ( x: number ): number => x, 1, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, '10', 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, true, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, false, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, null, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, undefined, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, [], 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, {}, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, ( x: number ): number => x, 0, y, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a seventh argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, 1, '10', y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, true, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, false, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, null, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, undefined, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, [], y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, {}, y, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, ( x: number ): number => x, y, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, '10', 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, 10, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, true, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, false, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, null, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, undefined, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, [ '1' ], 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, {}, 1, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, ( x: number ): number => x, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a ninth argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, '10', 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, true, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, false, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, null, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, undefined, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, [], 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, {}, 0, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, ( x: number ): number => x, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a tenth argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, '10', out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, true, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, false, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, null, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, undefined, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, [], out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, {}, out, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, ( x: number ): number => x, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eleventh argument which is not a Float32Array...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, '10', 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, 10, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, true, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, false, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, null, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, undefined, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, [ '1' ], 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, {}, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a twelfth argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, '10', 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, true, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, false, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, null, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, undefined, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, [], 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, {}, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a thirteenth argument which is not a number...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, '10' ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, true ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, false ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, null ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, undefined ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, [] ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, {} ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+ const x = new Float32Array( 3 );
+ const y = new Float32Array( 3 );
+ const condition = new BooleanArray( 3 );
+ const out = new Float32Array( 3 );
+
+ swhere.ndarray(); // $ExpectError
+ swhere.ndarray( 3 ); // $ExpectError
+ swhere.ndarray( 3, condition ); // $ExpectError
+ swhere.ndarray( 3, condition, 1 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1 ); // $ExpectError
+ swhere.ndarray( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/c/Makefile
new file mode 100644
index 000000000000..c8f8e9a1517b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := example.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled examples.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/c/example.c
new file mode 100644
index 000000000000..48e415f35978
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/c/example.c
@@ -0,0 +1,46 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/swhere.h"
+#include
+#include
+
+int main( void ) {
+ // Create strided arrays:
+ const bool condition[] = { true, false, true, false, true };
+ const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f };
+ const float y[] = { 6.0f, 7.0f, 8.0f, 9.0f, 10.0f };
+ float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+ // Specify the number of indexed elements:
+ const int N = 5;
+
+ // Specify stride lengths:
+ const int strideC = 1;
+ const int strideX = 1;
+ const int strideY = 1;
+ const int strideOut = 1;
+
+ // Select from `x` or `y` based on the condition array:
+ stdlib_strided_swhere( N, condition, strideC, x, strideX, y, strideY, out, strideOut );
+
+ // Print the result:
+ for ( int i = 0; i < N; i++ ) {
+ printf( "out[ %i ] = %f\n", i, out[ i ] );
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/index.js
new file mode 100644
index 000000000000..aaf1311dbe71
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/examples/index.js
@@ -0,0 +1,47 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var Float32Array = require( '@stdlib/array/float32' );
+var swhere = require( './../lib' );
+
+var cbuf = bernoulli( 20, 0.5, {
+ 'dtype': 'uint8'
+});
+var condition = new BooleanArray( cbuf.buffer );
+console.log( condition );
+
+var x = uniform( 20, 0.0, 100.0, {
+ 'dtype': 'float32'
+});
+console.log( x );
+
+var y = uniform( 20, -100.0, 0.0, {
+ 'dtype': 'float32'
+});
+console.log( y );
+
+var out = new Float32Array( condition.length );
+console.log( out );
+
+swhere( condition.length, condition, 1, x, 1, y, 1, out, 1 );
+console.log( out );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/swhere/include.gypi
new file mode 100644
index 000000000000..bee8d41a2caf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/include.gypi
@@ -0,0 +1,53 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A GYP include file for building a Node.js native add-on.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Source directory:
+ 'src_dir': './src',
+
+ # Include directories:
+ 'include_dirs': [
+ '
+
+/*
+* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+*/
+void API_SUFFIX(stdlib_strided_swhere)( const CBLAS_INT N, const bool *Condition, const CBLAS_INT strideC, const float *X, const CBLAS_INT strideX, const float *Y, const CBLAS_INT strideY, float *Out, const CBLAS_INT strideOut );
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition using alternative indexing semantics.
+*/
+void API_SUFFIX(stdlib_strided_swhere_ndarray)( const CBLAS_INT N, const bool *Condition, const CBLAS_INT strideC, const CBLAS_INT offsetC, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const float *Y, const CBLAS_INT strideY, const CBLAS_INT offsetY, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_BLAS_EXT_BASE_SWHERE_H
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/index.js
new file mode 100644
index 000000000000..3618a766af3a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/index.js
@@ -0,0 +1,76 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Take elements from one of two single-precision floating-point strided arrays depending on a condition.
+*
+* @module @stdlib/blas/ext/base/swhere
+*
+* @example
+* var BooleanArray = require( '@stdlib/array/bool' );
+* var Float32Array = require( '@stdlib/array/float32' );
+* var swhere = require( '@stdlib/blas/ext/base/swhere' );
+*
+* var condition = new BooleanArray( [ true, false, true ] );
+* var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+* var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+*
+* swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+* // out => [ 1.0, 5.0, 3.0 ]
+*
+* @example
+* var BooleanArray = require( '@stdlib/array/bool' );
+* var Float32Array = require( '@stdlib/array/float32' );
+* var swhere = require( '@stdlib/blas/ext/base/swhere' );
+*
+* var condition = new BooleanArray( [ true, false, true, false ] );
+* var x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var y = new Float32Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+* var out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0 ] );
+*
+* swhere.ndarray( 4, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+* // out => [ 1.0, 6.0, 3.0, 8.0 ]
+*/
+
+// MODULES //
+
+var join = require( 'path' ).join;
+var tryRequire = require( '@stdlib/utils/try-require' );
+var isError = require( '@stdlib/assert/is-error' );
+var main = require( './main.js' );
+
+
+// MAIN //
+
+var swhere;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+ swhere = main;
+} else {
+ swhere = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = swhere;
+
+// exports: { "ndarray": "swhere.ndarray" }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/main.js
new file mode 100644
index 000000000000..18923842479b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/main.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var swhere = require( './swhere.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( swhere, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = swhere;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/native.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/native.js
new file mode 100644
index 000000000000..f1d02a42f116
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/native.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var swhere = require( './swhere.native.js' );
+var ndarray = require( './ndarray.native.js' );
+
+
+// MAIN //
+
+setReadOnly( swhere, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = swhere;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/ndarray.js
new file mode 100644
index 000000000000..13ff56619c2a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/ndarray.js
@@ -0,0 +1,91 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var reinterpretBoolean = require( '@stdlib/strided/base/reinterpret-boolean' );
+
+
+// MAIN //
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {BooleanArray} condition - condition array
+* @param {integer} strideC - stride length for `condition`
+* @param {NonNegativeInteger} offsetC - starting index for `condition`
+* @param {Float32Array} x - first input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {Float32Array} y - second input array
+* @param {integer} strideY - stride length for `y`
+* @param {NonNegativeInteger} offsetY - starting index for `y`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @returns {Float32Array} output array
+*
+* @example
+* var BooleanArray = require( '@stdlib/array/bool' );
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var condition = new BooleanArray( [ true, false, true ] );
+* var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+* var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+*
+* swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+* // out => [ 1.0, 5.0, 3.0 ]
+*/
+function swhere( N, condition, strideC, offsetC, x, strideX, offsetX, y, strideY, offsetY, out, strideOut, offsetOut ) { // eslint-disable-line max-len, max-params
+ var cbuf;
+ var ic;
+ var ix;
+ var iy;
+ var io;
+ var i;
+
+ if ( N <= 0 ) {
+ return out;
+ }
+ cbuf = reinterpretBoolean( condition, 0 );
+ ic = offsetC;
+ ix = offsetX;
+ iy = offsetY;
+ io = offsetOut;
+ for ( i = 0; i < N; i++ ) {
+ if ( cbuf[ ic ] ) {
+ out[ io ] = x[ ix ];
+ } else {
+ out[ io ] = y[ iy ];
+ }
+ ic += strideC;
+ ix += strideX;
+ iy += strideY;
+ io += strideOut;
+ }
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = swhere;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/ndarray.native.js
new file mode 100644
index 000000000000..ba96fa16c564
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/ndarray.native.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var reinterpretBoolean = require( '@stdlib/strided/base/reinterpret-boolean' );
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {BooleanArray} condition - condition array
+* @param {integer} strideC - stride length for `condition`
+* @param {NonNegativeInteger} offsetC - starting index for `condition`
+* @param {Float32Array} x - first input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {Float32Array} y - second input array
+* @param {integer} strideY - stride length for `y`
+* @param {NonNegativeInteger} offsetY - starting index for `y`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @returns {Float32Array} output array
+*
+* @example
+* var BooleanArray = require( '@stdlib/array/bool' );
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var condition = new BooleanArray( [ true, false, true ] );
+* var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+* var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+*
+* swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+* // out => [ 1.0, 5.0, 3.0 ]
+*/
+function swhere( N, condition, strideC, offsetC, x, strideX, offsetX, y, strideY, offsetY, out, strideOut, offsetOut ) { // eslint-disable-line max-len, max-params
+ addon.ndarray( N, reinterpretBoolean( condition, 0 ), strideC, offsetC, x, strideX, offsetX, y, strideY, offsetY, out, strideOut, offsetOut ); // eslint-disable-line max-len
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = swhere;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/swhere.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/swhere.js
new file mode 100644
index 000000000000..d515c76e77c0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/swhere.js
@@ -0,0 +1,66 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var stride2offset = require( '@stdlib/strided/base/stride2offset' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {BooleanArray} condition - condition array
+* @param {integer} strideC - stride length for `condition`
+* @param {Float32Array} x - first input array
+* @param {integer} strideX - stride length for `x`
+* @param {Float32Array} y - second input array
+* @param {integer} strideY - stride length for `y`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @returns {Float32Array} output array
+*
+* @example
+* var BooleanArray = require( '@stdlib/array/bool' );
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var condition = new BooleanArray( [ true, false, true ] );
+* var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+* var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+*
+* swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+* // out => [ 1.0, 5.0, 3.0 ]
+*/
+function swhere( N, condition, strideC, x, strideX, y, strideY, out, strideOut ) { // eslint-disable-line max-len
+ var oc = stride2offset( N, strideC );
+ var ox = stride2offset( N, strideX );
+ var oy = stride2offset( N, strideY );
+ var oo = stride2offset( N, strideOut );
+ return ndarray( N, condition, strideC, oc, x, strideX, ox, y, strideY, oy, out, strideOut, oo ); // eslint-disable-line max-len
+}
+
+
+// EXPORTS //
+
+module.exports = swhere;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/swhere.native.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/swhere.native.js
new file mode 100644
index 000000000000..dfba80274a60
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/lib/swhere.native.js
@@ -0,0 +1,63 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var reinterpretBoolean = require( '@stdlib/strided/base/reinterpret-boolean' );
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {BooleanArray} condition - condition array
+* @param {integer} strideC - stride length for `condition`
+* @param {Float32Array} x - first input array
+* @param {integer} strideX - stride length for `x`
+* @param {Float32Array} y - second input array
+* @param {integer} strideY - stride length for `y`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @returns {Float32Array} output array
+*
+* @example
+* var BooleanArray = require( '@stdlib/array/bool' );
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var condition = new BooleanArray( [ true, false, true ] );
+* var x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+* var out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+*
+* swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+* // out => [ 1.0, 5.0, 3.0 ]
+*/
+function swhere( N, condition, strideC, x, strideX, y, strideY, out, strideOut ) { // eslint-disable-line max-len
+ addon( N, reinterpretBoolean( condition, 0 ), strideC, x, strideX, y, strideY, out, strideOut ); // eslint-disable-line max-len
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = swhere;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/manifest.json b/lib/node_modules/@stdlib/blas/ext/base/swhere/manifest.json
new file mode 100644
index 000000000000..5fba62413ac3
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/manifest.json
@@ -0,0 +1,79 @@
+{
+ "options": {
+ "task": "build"
+ },
+ "fields": [
+ {
+ "field": "src",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "include",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "libraries",
+ "resolve": false,
+ "relative": false
+ },
+ {
+ "field": "libpath",
+ "resolve": true,
+ "relative": false
+ }
+ ],
+ "confs": [
+ {
+ "task": "build",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/napi/export",
+ "@stdlib/napi/argv",
+ "@stdlib/napi/argv-int64",
+ "@stdlib/napi/argv-strided-booleanarray",
+ "@stdlib/napi/argv-strided-float32array"
+ ]
+ },
+ {
+ "task": "benchmark",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset"
+ ]
+ },
+ {
+ "task": "examples",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset"
+ ]
+ }
+ ]
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/package.json b/lib/node_modules/@stdlib/blas/ext/base/swhere/package.json
new file mode 100644
index 000000000000..9626e43ccbc9
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/package.json
@@ -0,0 +1,78 @@
+{
+ "name": "@stdlib/blas/ext/base/swhere",
+ "version": "0.0.0",
+ "description": "Take elements from one of two single-precision floating-point strided arrays depending on a condition.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "browser": "./lib/main.js",
+ "gypfile": true,
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "include": "./include",
+ "lib": "./lib",
+ "src": "./src",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdmath",
+ "mathematics",
+ "math",
+ "blas",
+ "extended",
+ "where",
+ "condition",
+ "conditional",
+ "select",
+ "ternary",
+ "strided",
+ "strided array",
+ "typed",
+ "array",
+ "float32",
+ "float",
+ "float32array"
+ ],
+ "__stdlib__": {
+ "wasm": false
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/src/Makefile b/lib/node_modules/@stdlib/blas/ext/base/swhere/src/Makefile
new file mode 100644
index 000000000000..2caf905cedbe
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+ $(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/swhere/src/addon.c
new file mode 100644
index 000000000000..aedf48251abb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/src/addon.c
@@ -0,0 +1,77 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/swhere.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/napi/export.h"
+#include "stdlib/napi/argv.h"
+#include "stdlib/napi/argv_int64.h"
+#include "stdlib/napi/argv_strided_booleanarray.h"
+#include "stdlib/napi/argv_strided_float32array.h"
+#include
+#include
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 9 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, strideC, argv, 2 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 4 );
+ STDLIB_NAPI_ARGV_INT64( env, strideY, argv, 6 );
+ STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 8 );
+ STDLIB_NAPI_ARGV_STRIDED_BOOLEANARRAY( env, Condition, N, strideC, argv, 1 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 3 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Y, N, strideY, argv, 5 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N, strideOut, argv, 7 );
+ API_SUFFIX(stdlib_strided_swhere)( N, Condition, strideC, X, strideX, Y, strideY, Out, strideOut );
+ return NULL;
+}
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon_method( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 13 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, strideC, argv, 2 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetC, argv, 3 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 5 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 6 );
+ STDLIB_NAPI_ARGV_INT64( env, strideY, argv, 8 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetY, argv, 9 );
+ STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 11 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetOut, argv, 12 );
+ STDLIB_NAPI_ARGV_STRIDED_BOOLEANARRAY( env, Condition, N, strideC, argv, 1 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 4 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Y, N, strideY, argv, 7 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N, strideOut, argv, 10 );
+ API_SUFFIX(stdlib_strided_swhere_ndarray)( N, Condition, strideC, offsetC, X, strideX, offsetX, Y, strideY, offsetY, Out, strideOut, offsetOut );
+ return NULL;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "ndarray", addon_method )
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/swhere/src/main.c
new file mode 100644
index 000000000000..188e3aa9ca1b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/src/main.c
@@ -0,0 +1,88 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/swhere.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/strided/base/stride2offset.h"
+#include
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition.
+*
+* @param N number of indexed elements
+* @param Condition condition array
+* @param strideC stride length for `Condition`
+* @param X first input array
+* @param strideX stride length for `X`
+* @param Y second input array
+* @param strideY stride length for `Y`
+* @param Out output array
+* @param strideOut stride length for `Out`
+*/
+void API_SUFFIX(stdlib_strided_swhere)( const CBLAS_INT N, const bool *Condition, const CBLAS_INT strideC, const float *X, const CBLAS_INT strideX, const float *Y, const CBLAS_INT strideY, float *Out, const CBLAS_INT strideOut ) {
+ const CBLAS_INT oc = stdlib_strided_stride2offset( N, strideC );
+ const CBLAS_INT ox = stdlib_strided_stride2offset( N, strideX );
+ const CBLAS_INT oy = stdlib_strided_stride2offset( N, strideY );
+ const CBLAS_INT oo = stdlib_strided_stride2offset( N, strideOut );
+ API_SUFFIX(stdlib_strided_swhere_ndarray)( N, Condition, strideC, oc, X, strideX, ox, Y, strideY, oy, Out, strideOut, oo );
+}
+
+/**
+* Takes elements from one of two single-precision floating-point strided arrays depending on a condition using alternative indexing semantics.
+*
+* @param N number of indexed elements
+* @param Condition condition array
+* @param strideC stride length for `Condition`
+* @param offsetC starting index for `Condition`
+* @param X first input array
+* @param strideX stride length for `X`
+* @param offsetX starting index for `X`
+* @param Y second input array
+* @param strideY stride length for `Y`
+* @param offsetY starting index for `Y`
+* @param Out output array
+* @param strideOut stride length for `Out`
+* @param offsetOut starting index for `Out`
+*/
+void API_SUFFIX(stdlib_strided_swhere_ndarray)( const CBLAS_INT N, const bool *Condition, const CBLAS_INT strideC, const CBLAS_INT offsetC, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const float *Y, const CBLAS_INT strideY, const CBLAS_INT offsetY, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut ) {
+ CBLAS_INT ic;
+ CBLAS_INT ix;
+ CBLAS_INT iy;
+ CBLAS_INT io;
+ CBLAS_INT i;
+
+ if ( N <= 0 ) {
+ return;
+ }
+ ic = offsetC;
+ ix = offsetX;
+ iy = offsetY;
+ io = offsetOut;
+ for ( i = 0; i < N; i++ ) {
+ if ( Condition[ ic ] ) {
+ Out[ io ] = X[ ix ];
+ } else {
+ Out[ io ] = Y[ iy ];
+ }
+ ic += strideC;
+ ix += strideX;
+ iy += strideY;
+ io += strideOut;
+ }
+ return;
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.js
new file mode 100644
index 000000000000..49aa9d89192f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var proxyquire = require( 'proxyquire' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
+var swhere = require( './../lib' );
+
+
+// VARIABLES //
+
+var opts = {
+ 'skip': IS_BROWSER
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof swhere, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+ t.strictEqual( typeof swhere.ndarray, 'function', 'method is a function' );
+ t.end();
+});
+
+tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) {
+ var swhere = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( swhere, mock, 'returns native implementation' );
+ t.end();
+
+ function tryRequire() {
+ return mock;
+ }
+
+ function mock() {
+ // Mock...
+ }
+});
+
+tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) {
+ var swhere;
+ var main;
+
+ main = require( './../lib/main.js' );
+
+ swhere = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( swhere, main, 'returns JavaScript implementation' );
+ t.end();
+
+ function tryRequire() {
+ return new Error( 'Cannot find module' );
+ }
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.ndarray.js
new file mode 100644
index 000000000000..640b72f4a2ca
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.ndarray.js
@@ -0,0 +1,486 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var swhere = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof swhere, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 13', function test( t ) {
+ t.strictEqual( swhere.length, 13, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
+ y = new Float32Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ swhere( 5, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0, 9.0, 5.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition (all true)', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, true, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition (all false)', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ false, false, false ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', function test( t ) {
+ var condition;
+ var actual;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ actual = swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+
+ t.strictEqual( actual, out, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns the output array unchanged', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ expected = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ swhere( -1, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ swhere( 0, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `condition` stride', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false,
+ false, // 1
+ true,
+ true // 2
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0, // 1
+ 8.0, // 2
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false, // 1
+ true, // 2
+ false,
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0, // 1
+ 8.0, // 2
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 2, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 7.0, 5.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ false, // 0
+ true, // 1
+ false, // 2
+ true,
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0,
+ 8.0, // 1
+ 9.0,
+ 10.0 // 2
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 2, 0, out, 1, 0 );
+ expected = new Float32Array( [ 6.0, 2.0, 10.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `out` stride', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 2, 0 );
+ expected = new Float32Array( [ 1.0, 0.0, 5.0, 0.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports negative strides', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 2
+ false,
+ false, // 1
+ true,
+ true // 0
+ ]);
+ x = new Float32Array([
+ 1.0, // 2
+ 2.0, // 1
+ 3.0, // 0
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 2
+ 7.0, // 1
+ 8.0, // 0
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, -2, 4, x, -1, 2, y, -1, 2, out, -1, 2 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `condition` offset', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ false,
+ true, // 0
+ false,
+ false, // 1
+ false,
+ true // 2
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+ y = new Float32Array([
+ 7.0, // 0
+ 8.0, // 1
+ 9.0, // 2
+ 10.0,
+ 11.0,
+ 12.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, 1, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 8.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` offset', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false, // 1
+ true, // 2
+ false
+ ]);
+ x = new Float32Array([
+ 0.0,
+ 1.0, // 0
+ 0.0,
+ 2.0, // 1
+ 0.0,
+ 3.0, // 2
+ 0.0,
+ 4.0
+ ]);
+ y = new Float32Array([
+ 5.0, // 0
+ 6.0, // 1
+ 7.0, // 2
+ 8.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 2, 1, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 6.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `y` offset', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ false, // 0
+ true, // 1
+ false, // 2
+ true
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0
+ ]);
+ y = new Float32Array([
+ 0.0,
+ 5.0, // 0
+ 0.0,
+ 6.0, // 1
+ 0.0,
+ 7.0, // 2
+ 0.0,
+ 8.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 2, 1, out, 1, 0 );
+ expected = new Float32Array( [ 5.0, 2.0, 7.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `out` offset', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array([
+ 0.0,
+ 0.0,
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 2 );
+ expected = new Float32Array( [ 0.0, 0.0, 1.0, 5.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false,
+ false, // 1
+ true,
+ true, // 2
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 2
+ 2.0, // 1
+ 3.0, // 0
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+ y = new Float32Array([
+ 7.0, // 0
+ 8.0,
+ 9.0, // 1
+ 10.0,
+ 11.0, // 2
+ 12.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, 0, x, -1, 2, y, 2, 0, out, 1, 0 );
+ expected = new Float32Array( [ 3.0, 9.0, 1.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.ndarray.native.js
new file mode 100644
index 000000000000..68a6013c3ce1
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.ndarray.native.js
@@ -0,0 +1,495 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var swhere = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( swhere instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof swhere, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 13', opts, function test( t ) {
+ t.strictEqual( swhere.length, 13, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
+ y = new Float32Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ swhere( 5, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0, 9.0, 5.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition (all true)', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, true, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition (all false)', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ false, false, false ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', opts, function test( t ) {
+ var condition;
+ var actual;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ actual = swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+
+ t.strictEqual( actual, out, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns the output array unchanged', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ expected = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ swhere( -1, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ swhere( 0, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `condition` stride', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false,
+ false, // 1
+ true,
+ true // 2
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0, // 1
+ 8.0, // 2
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false, // 1
+ true, // 2
+ false,
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0, // 1
+ 8.0, // 2
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 2, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 7.0, 5.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ false, // 0
+ true, // 1
+ false, // 2
+ true,
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0,
+ 8.0, // 1
+ 9.0,
+ 10.0 // 2
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 2, 0, out, 1, 0 );
+ expected = new Float32Array( [ 6.0, 2.0, 10.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `out` stride', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 2, 0 );
+ expected = new Float32Array( [ 1.0, 0.0, 5.0, 0.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports negative strides', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 2
+ false,
+ false, // 1
+ true,
+ true // 0
+ ]);
+ x = new Float32Array([
+ 1.0, // 2
+ 2.0, // 1
+ 3.0, // 0
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 2
+ 7.0, // 1
+ 8.0, // 0
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, -2, 4, x, -1, 2, y, -1, 2, out, -1, 2 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `condition` offset', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ false,
+ true, // 0
+ false,
+ false, // 1
+ false,
+ true // 2
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+ y = new Float32Array([
+ 7.0, // 0
+ 8.0, // 1
+ 9.0, // 2
+ 10.0,
+ 11.0,
+ 12.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, 1, x, 1, 0, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 8.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` offset', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false, // 1
+ true, // 2
+ false
+ ]);
+ x = new Float32Array([
+ 0.0,
+ 1.0, // 0
+ 0.0,
+ 2.0, // 1
+ 0.0,
+ 3.0, // 2
+ 0.0,
+ 4.0
+ ]);
+ y = new Float32Array([
+ 5.0, // 0
+ 6.0, // 1
+ 7.0, // 2
+ 8.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 2, 1, y, 1, 0, out, 1, 0 );
+ expected = new Float32Array( [ 1.0, 6.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `y` offset', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ false, // 0
+ true, // 1
+ false, // 2
+ true
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0
+ ]);
+ y = new Float32Array([
+ 0.0,
+ 5.0, // 0
+ 0.0,
+ 6.0, // 1
+ 0.0,
+ 7.0, // 2
+ 0.0,
+ 8.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 2, 1, out, 1, 0 );
+ expected = new Float32Array( [ 5.0, 2.0, 7.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `out` offset', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array([
+ 0.0,
+ 0.0,
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ swhere( 3, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 2 );
+ expected = new Float32Array( [ 0.0, 0.0, 1.0, 5.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false,
+ false, // 1
+ true,
+ true, // 2
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 2
+ 2.0, // 1
+ 3.0, // 0
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+ y = new Float32Array([
+ 7.0, // 0
+ 8.0,
+ 9.0, // 1
+ 10.0,
+ 11.0, // 2
+ 12.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, 0, x, -1, 2, y, 2, 0, out, 1, 0 );
+ expected = new Float32Array( [ 3.0, 9.0, 1.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.swhere.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.swhere.js
new file mode 100644
index 000000000000..1cfc715fdc3e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.swhere.js
@@ -0,0 +1,375 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var swhere = require( './../lib/swhere.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof swhere, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 9', function test( t ) {
+ t.strictEqual( swhere.length, 9, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
+ y = new Float32Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ swhere( 5, condition, 1, x, 1, y, 1, out, 1 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0, 9.0, 5.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition (all true)', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, true, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+ expected = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition (all false)', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ false, false, false ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+ expected = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', function test( t ) {
+ var condition;
+ var actual;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ actual = swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+
+ t.strictEqual( actual, out, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns the output array unchanged', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ expected = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ swhere( -1, condition, 1, x, 1, y, 1, out, 1 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ swhere( 0, condition, 1, x, 1, y, 1, out, 1 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `condition` stride', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false,
+ false, // 1
+ true,
+ true // 2
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0, // 1
+ 8.0, // 2
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, x, 1, y, 1, out, 1 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false, // 1
+ true, // 2
+ false,
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0, // 1
+ 8.0, // 2
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 2, y, 1, out, 1 );
+ expected = new Float32Array( [ 1.0, 7.0, 5.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ false, // 0
+ true, // 1
+ false, // 2
+ true,
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0,
+ 8.0, // 1
+ 9.0,
+ 10.0 // 2
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 1, y, 2, out, 1 );
+ expected = new Float32Array( [ 6.0, 2.0, 10.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `out` stride', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 1, y, 1, out, 2 );
+ expected = new Float32Array( [ 1.0, 0.0, 5.0, 0.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports negative strides', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 2
+ false,
+ false, // 1
+ true,
+ true // 0
+ ]);
+ x = new Float32Array([
+ 1.0, // 2
+ 2.0, // 1
+ 3.0, // 0
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 2
+ 7.0, // 1
+ 8.0, // 0
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, -2, x, -1, y, -1, out, -1 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false,
+ false, // 1
+ true,
+ true, // 2
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 2
+ 2.0, // 1
+ 3.0, // 0
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+ y = new Float32Array([
+ 7.0, // 0
+ 8.0,
+ 9.0, // 1
+ 10.0,
+ 11.0, // 2
+ 12.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, x, -1, y, 2, out, 1 );
+ expected = new Float32Array( [ 3.0, 9.0, 1.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports view offsets', function test( t ) {
+ var condition0;
+ var condition1;
+ var expected;
+ var out0;
+ var out1;
+ var x0;
+ var y0;
+ var x1;
+ var y1;
+
+ // Initial arrays...
+ condition0 = new BooleanArray( [ false, true, false, true, false, true ] );
+ x0 = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ y0 = new Float32Array( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+ out0 = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ // Create offset views...
+ condition1 = new BooleanArray( condition0.buffer, condition0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element // eslint-disable-line max-len
+ x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element
+ y1 = new Float32Array( y0.buffer, y0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element
+ out1 = new Float32Array( out0.buffer, out0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element
+
+ swhere( 3, condition1, 2, x1, 2, y1, 2, out1, 1 );
+ expected = new Float32Array( [ 0.0, 2.0, 4.0, 6.0, 0.0, 0.0 ] );
+
+ t.deepEqual( out0, expected, 'returns expected value' );
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.swhere.native.js b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.swhere.native.js
new file mode 100644
index 000000000000..b62a52f2a79a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/swhere/test/test.swhere.native.js
@@ -0,0 +1,384 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var BooleanArray = require( '@stdlib/array/bool' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var swhere = tryRequire( resolve( __dirname, './../lib/swhere.native.js' ) );
+var opts = {
+ 'skip': ( swhere instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof swhere, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 9', opts, function test( t ) {
+ t.strictEqual( swhere.length, 9, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
+ y = new Float32Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ swhere( 5, condition, 1, x, 1, y, 1, out, 1 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0, 9.0, 5.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition (all true)', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, true, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+ expected = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function selects elements from `x` or `y` based on a condition (all false)', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ false, false, false ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+ expected = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', opts, function test( t ) {
+ var condition;
+ var actual;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ actual = swhere( 3, condition, 1, x, 1, y, 1, out, 1 );
+
+ t.strictEqual( actual, out, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns the output array unchanged', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ expected = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ swhere( -1, condition, 1, x, 1, y, 1, out, 1 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+ swhere( 0, condition, 1, x, 1, y, 1, out, 1 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `condition` stride', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false,
+ false, // 1
+ true,
+ true // 2
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0, // 1
+ 8.0, // 2
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, x, 1, y, 1, out, 1 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false, // 1
+ true, // 2
+ false,
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0, // 1
+ 8.0, // 2
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 2, y, 1, out, 1 );
+ expected = new Float32Array( [ 1.0, 7.0, 5.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ false, // 0
+ true, // 1
+ false, // 2
+ true,
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0, // 2
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 0
+ 7.0,
+ 8.0, // 1
+ 9.0,
+ 10.0 // 2
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 1, y, 2, out, 1 );
+ expected = new Float32Array( [ 6.0, 2.0, 10.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `out` stride', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray( [ true, false, true ] );
+ x = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float32Array( [ 4.0, 5.0, 6.0 ] );
+ out = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 1, x, 1, y, 1, out, 2 );
+ expected = new Float32Array( [ 1.0, 0.0, 5.0, 0.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports negative strides', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 2
+ false,
+ false, // 1
+ true,
+ true // 0
+ ]);
+ x = new Float32Array([
+ 1.0, // 2
+ 2.0, // 1
+ 3.0, // 0
+ 4.0,
+ 5.0
+ ]);
+ y = new Float32Array([
+ 6.0, // 2
+ 7.0, // 1
+ 8.0, // 0
+ 9.0,
+ 10.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, -2, x, -1, y, -1, out, -1 );
+ expected = new Float32Array( [ 1.0, 7.0, 3.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', opts, function test( t ) {
+ var condition;
+ var expected;
+ var out;
+ var x;
+ var y;
+
+ condition = new BooleanArray([
+ true, // 0
+ false,
+ false, // 1
+ true,
+ true, // 2
+ false
+ ]);
+ x = new Float32Array([
+ 1.0, // 2
+ 2.0, // 1
+ 3.0, // 0
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+ y = new Float32Array([
+ 7.0, // 0
+ 8.0,
+ 9.0, // 1
+ 10.0,
+ 11.0, // 2
+ 12.0
+ ]);
+ out = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+
+ swhere( 3, condition, 2, x, -1, y, 2, out, 1 );
+ expected = new Float32Array( [ 3.0, 9.0, 1.0 ] );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports view offsets', opts, function test( t ) {
+ var condition0;
+ var condition1;
+ var expected;
+ var out0;
+ var out1;
+ var x0;
+ var y0;
+ var x1;
+ var y1;
+
+ // Initial arrays...
+ condition0 = new BooleanArray( [ false, true, false, true, false, true ] );
+ x0 = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ y0 = new Float32Array( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+ out0 = new Float32Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ // Create offset views...
+ condition1 = new BooleanArray( condition0.buffer, condition0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element // eslint-disable-line max-len
+ x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element
+ y1 = new Float32Array( y0.buffer, y0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element
+ out1 = new Float32Array( out0.buffer, out0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element
+
+ swhere( 3, condition1, 2, x1, 2, y1, 2, out1, 1 );
+ expected = new Float32Array( [ 0.0, 2.0, 4.0, 6.0, 0.0, 0.0 ] );
+
+ t.deepEqual( out0, expected, 'returns expected value' );
+ t.end();
+});