From dc999a82de64fa9d52c4c084a97c86428dc53fb3 Mon Sep 17 00:00:00 2001
From: kaustubh <kaustubh.mp007@gmail.com>
Date: Mon, 20 Apr 2026 22:41:11 +0530
Subject: [PATCH 1/6] feat: add blas/base/ndarray/zcopy

---
 .../@stdlib/blas/base/ndarray/zcopy/README.md | 121 +++++++
 .../base/ndarray/zcopy/benchmark/benchmark.js | 120 +++++++
 .../blas/base/ndarray/zcopy/docs/repl.txt     |  39 ++
 .../base/ndarray/zcopy/docs/types/index.d.ts  |  52 +++
 .../base/ndarray/zcopy/docs/types/test.ts     |  63 ++++
 .../blas/base/ndarray/zcopy/examples/index.js |  40 +++
 .../blas/base/ndarray/zcopy/lib/index.js      |  51 +++
 .../blas/base/ndarray/zcopy/lib/main.js       |  64 ++++
 .../blas/base/ndarray/zcopy/package.json      |  72 ++++
 .../blas/base/ndarray/zcopy/test/test.js      | 333 ++++++++++++++++++
 10 files changed, 955 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/benchmark/benchmark.js
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/types/index.d.ts
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/types/test.ts
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/lib/index.js
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/lib/main.js
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/package.json
 create mode 100644 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js

diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
new file mode 100644
index 000000000000..149c21c3d62a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
@@ -0,0 +1,121 @@
+<!--
+
+@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.
+
+-->
+
+# zcopy
+
+> Copy values from a one-dimensional double-precision complex floating-point ndarray `x` into a one-dimensional double-precision complex floating-point ndarray `y`.
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var zcopy = require( '@stdlib/blas/base/ndarray/zcopy' );
+```
+
+#### zcopy( arrays )
+
+Copies values from a one-dimensional double-precision complex floating-point ndarray `x` into a one-dimensional double-precision complex floating-point ndarray `y`.
+
+```javascript
+var Complex128Array = require( '@stdlib/array/complex128' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+
+var xbuf = new Complex128Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var x = new ndarray( 'complex128', xbuf, [ 3 ], [ 1 ], 0, 'row-major' );
+
+var ybuf = new Complex128Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+var y = new ndarray( 'complex128', ybuf, [ 3 ], [ 1 ], 0, 'row-major' );
+
+var z = zcopy( [ x, y ] );
+// returns <ndarray>[ <Complex128>[ 1.0, 2.0 ], <Complex128>[ 3.0, 4.0 ], <Complex128>[ 5.0, 6.0 ] ]
+
+var bool = ( y === z );
+// returns true
+```
+
+The function has the following parameters:
+
+-   **arrays**: array-like object containing an input ndarray and an output ndarray.
+
+</section>
+
+<!-- /.usage -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Complex128Array = require( '@stdlib/array/complex128' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var zcopy = require( '@stdlib/blas/base/ndarray/zcopy' );
+
+var opts = {
+    'dtype': 'float64'
+};
+
+var xbuf = new Complex128Array( discreteUniform( 10, 0, 100, opts ) );
+var x = new ndarray( 'complex128', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
+console.log( ndarray2array( x ) );
+
+var ybuf = new Complex128Array( discreteUniform( xbuf.length*2, 0, 10, opts ) );
+var y = new ndarray( 'complex128', ybuf, [ ybuf.length ], [ 1 ], 0, 'row-major' );
+console.log( ndarray2array( y ) );
+
+var out = zcopy( [ x, y ] );
+console.log( ndarray2array( out ) );
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/benchmark/benchmark.js
new file mode 100644
index 000000000000..6da2e1274eea
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/benchmark/benchmark.js
@@ -0,0 +1,120 @@
+/**
+* @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 uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var real = require( '@stdlib/complex/float64/real' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var Complex128Array = require( '@stdlib/array/complex128' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var zcopy = require( './../lib' );
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'complex128'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var xbuf;
+	var ybuf;
+	var x;
+	var y;
+
+	xbuf = uniform( len*2, -100.0, 100.0, {
+		'dtype': 'float64'
+	});
+	x = new ndarray( options.dtype, new Complex128Array( xbuf ), [ len ], [ 1 ], 0, 'row-major' );
+
+	ybuf = uniform( len*2, -100.0, 100.0, {
+		'dtype': 'float64'
+	});
+	y = new ndarray( options.dtype, new Complex128Array( ybuf ), [ len ], [ 1 ], 0, 'row-major' );
+
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var z;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			z = zcopy( [ x, y ] );
+			if ( typeof z !== 'object' ) {
+				b.fail( 'should return an ndarray' );
+			}
+		}
+		b.toc();
+		if ( isnan( real( z.get( i%len ) ) ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		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/base/ndarray/zcopy/docs/repl.txt b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
new file mode 100644
index 000000000000..76a5c1ede99a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
@@ -0,0 +1,39 @@
+
+{{alias}}( arrays )
+    Copies values from a one-dimensional double-precision complex
+    floating-point ndarray `x` into a one-dimensional double-precision
+    complex floating-point ndarray `y`.
+
+    If provided an empty input ndarray, the function returns the output
+    ndarray unchanged.
+
+    Parameters
+    ----------
+    arrays: ArrayLikeObject<ndarray>
+        Array-like object containing an input ndarray and an output
+        ndarray.
+
+    Returns
+    -------
+    out: ndarray
+        Output ndarray.
+
+    Examples
+    --------
+    > var xbuf = new {{alias:@stdlib/array/complex128}}( [ 1.0, 2.0 ] );
+    > var ybuf = new {{alias:@stdlib/array/complex128}}( [ 0.0, 0.0 ] );
+    > var dt = 'complex128';
+    > var sh = [ xbuf.length ];
+    > var st = [ 1 ];
+    > var oo = 0;
+    > var ord = 'row-major';
+    > var x = new {{alias:@stdlib/ndarray/ctor}}( dt, xbuf, sh, st, oo, ord );
+    > var y = new {{alias:@stdlib/ndarray/ctor}}( dt, ybuf, sh, st, oo, ord );
+
+    > {{alias}}( [ x, y ] );
+    > y
+    <ndarray>[ <Complex128>[ 1.0, 2.0 ] ]
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/types/index.d.ts
new file mode 100644
index 000000000000..1821afed013d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/types/index.d.ts
@@ -0,0 +1,52 @@
+/*
+* @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
+
+/// <reference types="@stdlib/types"/>
+
+import { complex128ndarray } from '@stdlib/types/ndarray';
+
+/**
+* Copies values from a one-dimensional double-precision complex floating-point ndarray `x` into a one-dimensional double-precision complex floating-point ndarray `y`.
+*
+* @param arrays - array-like object containing an input ndarray and an output ndarray
+* @returns output ndarray
+*
+* @example
+* var Complex128Array = require( '@stdlib/array/complex128' );
+* var ndarray = require( '@stdlib/ndarray/base/ctor' );
+*
+* var xbuf = new Complex128Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+* var x = new ndarray( 'complex128', xbuf, [ 3 ], [ 1 ], 0, 'row-major' );
+*
+* var ybuf = new Complex128Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+* var y = new ndarray( 'complex128', ybuf, [ 3 ], [ 1 ], 0, 'row-major' );
+*
+* var z = zcopy( [ x, y ] );
+* // returns <ndarray>[ <Complex128>[ 1.0, 2.0 ], <Complex128>[ 3.0, 4.0 ], <Complex128>[ 5.0, 6.0 ] ]
+*
+* var bool = ( z === y );
+* // returns true
+*/
+declare function zcopy( arrays: [ complex128ndarray, complex128ndarray ] ): complex128ndarray;
+
+
+// EXPORTS //
+
+export = zcopy;
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/types/test.ts b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/types/test.ts
new file mode 100644
index 000000000000..5c621fe07f19
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/types/test.ts
@@ -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.
+*/
+
+/* eslint-disable space-in-parens */
+
+import zeros = require( '@stdlib/ndarray/zeros' );
+import zcopy = require( './index' );
+
+
+// TESTS //
+
+// The function returns an ndarray...
+{
+	const x = zeros( [ 10 ], {
+		'dtype': 'complex128'
+	});
+	const y = zeros( [ 10 ], {
+		'dtype': 'complex128'
+	});
+
+	zcopy( [ x, y ] ); // $ExpectType complex128ndarray
+}
+
+// The compiler throws an error if the function is provided a first argument which is not an array of ndarrays...
+{
+	zcopy( '10' ); // $ExpectError
+	zcopy( 10 ); // $ExpectError
+	zcopy( true ); // $ExpectError
+	zcopy( false ); // $ExpectError
+	zcopy( null ); // $ExpectError
+	zcopy( undefined ); // $ExpectError
+	zcopy( [] ); // $ExpectError
+	zcopy( {} ); // $ExpectError
+	zcopy( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+	const x = zeros( [ 10 ], {
+		'dtype': 'complex128'
+	});
+	const y = zeros( [ 10 ], {
+		'dtype': 'complex128'
+	});
+
+	zcopy(); // $ExpectError
+	zcopy( [ x, y ], {} ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
new file mode 100644
index 000000000000..8788c4826a77
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
@@ -0,0 +1,40 @@
+/**
+* @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 discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Complex128Array = require( '@stdlib/array/complex128' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var zcopy = require( './../lib' );
+
+var opts = {
+	'dtype': 'float64'
+};
+
+var xbuf = new Complex128Array( discreteUniform( 10, 0, 100, opts ) );
+var x = new ndarray( 'complex128', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
+console.log( ndarray2array( x ) );
+
+var ybuf = new Complex128Array( discreteUniform( xbuf.length*2, 0, 10, opts ) );
+var y = new ndarray( 'complex128', ybuf, [ ybuf.length ], [ 1 ], 0, 'row-major' );
+console.log( ndarray2array( y ) );
+
+var out = zcopy( [ x, y ] );
+console.log( ndarray2array( out ) );
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/lib/index.js b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/lib/index.js
new file mode 100644
index 000000000000..d80d1078fbea
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/lib/index.js
@@ -0,0 +1,51 @@
+/**
+* @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';
+
+/**
+* BLAS level 1 routine to copy values from a one-dimensional double-precision complex floating-point ndarray `x` into a one-dimensional double-precision complex floating-point ndarray `y`.
+*
+* @module @stdlib/blas/base/ndarray/zcopy
+*
+* @example
+* var Complex128Array = require( '@stdlib/array/complex128' );
+* var ndarray = require( '@stdlib/ndarray/base/ctor' );
+* var zcopy = require( '@stdlib/blas/base/ndarray/zcopy' );
+*
+* var xbuf = new Complex128Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+* var x = new ndarray( 'complex128', xbuf, [ 3 ], [ 1 ], 0, 'row-major' );
+*
+* var ybuf = new Complex128Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+* var y = new ndarray( 'complex128', ybuf, [ 3 ], [ 1 ], 0, 'row-major' );
+*
+* var z = zcopy( [ x, y ] );
+* // returns <ndarray>[ <Complex128>[ 1.0, 2.0 ], <Complex128>[ 3.0, 4.0 ], <Complex128>[ 5.0, 6.0 ] ]
+*
+* var bool = ( z === y );
+* // returns true
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/lib/main.js b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/lib/main.js
new file mode 100644
index 000000000000..100b93908235
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/lib/main.js
@@ -0,0 +1,64 @@
+/**
+* @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 numelDimension = require( '@stdlib/ndarray/base/numel-dimension' );
+var getStride = require( '@stdlib/ndarray/base/stride' );
+var getOffset = require( '@stdlib/ndarray/base/offset' );
+var getData = require( '@stdlib/ndarray/base/data-buffer' );
+var strided = require( '@stdlib/blas/base/zcopy' ).ndarray;
+
+
+// MAIN //
+
+/**
+* Copies values from a one-dimensional double-precision complex floating-point ndarray `x` into a one-dimensional double-precision complex floating-point ndarray `y`.
+*
+* @param {ArrayLikeObject<Object>} arrays - array-like object containing an input ndarray and an output ndarray
+* @returns {Object} output ndarray
+*
+* @example
+* var Complex128Array = require( '@stdlib/array/complex128' );
+* var ndarray = require( '@stdlib/ndarray/base/ctor' );
+*
+* var xbuf = new Complex128Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+* var x = new ndarray( 'complex128', xbuf, [ 3 ], [ 1 ], 0, 'row-major' );
+*
+* var ybuf = new Complex128Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+* var y = new ndarray( 'complex128', ybuf, [ 3 ], [ 1 ], 0, 'row-major' );
+*
+* var z = zcopy( [ x, y ] );
+* // returns <ndarray>[ <Complex128>[ 1.0, 2.0 ], <Complex128>[ 3.0, 4.0 ], <Complex128>[ 5.0, 6.0 ] ]
+*
+* var bool = ( z === y );
+* // returns true
+*/
+function zcopy( arrays ) {
+	var x = arrays[ 0 ];
+	var y = arrays[ 1 ];
+	strided( numelDimension( x, 0 ), getData( x ), getStride( x, 0 ), getOffset( x ), getData( y ), getStride( y, 0 ), getOffset( y ) ); // eslint-disable-line max-len
+	return y;
+}
+
+
+// EXPORTS //
+
+module.exports = zcopy;
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/package.json b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/package.json
new file mode 100644
index 000000000000..9f68f9e27a07
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/package.json
@@ -0,0 +1,72 @@
+{
+  "name": "@stdlib/blas/base/ndarray/zcopy",
+  "version": "0.0.0",
+  "description": "Copy values from a one-dimensional double-precision complex floating-point ndarray `x` into a one-dimensional double-precision complex floating-point ndarray `y`.",
+  "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",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "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",
+    "level 1",
+    "zcopy",
+    "linear",
+    "algebra",
+    "subroutines",
+    "ccopy",
+    "dcopy",
+    "copy",
+    "vector",
+    "array",
+    "ndarray",
+    "complex128",
+    "double",
+    "complex128array"
+  ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js
new file mode 100644
index 000000000000..64eecf4af422
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js
@@ -0,0 +1,333 @@
+/**
+* @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 isSameComplex128Array = require( '@stdlib/assert/is-same-complex128array' );
+var Complex128Array = require( '@stdlib/array/complex128' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var getData = require( '@stdlib/ndarray/data-buffer' );
+var zcopy = require( './../lib' );
+
+
+// FUNCTIONS //
+
+/**
+* Returns a one-dimensional ndarray.
+*
+* @private
+* @param {Collection} buffer - underlying data buffer
+* @param {NonNegativeInteger} length - number of indexed elements
+* @param {integer} stride - stride length
+* @param {NonNegativeInteger} offset - index offset
+* @returns {ndarray} one-dimensional ndarray
+*/
+function vector( buffer, length, stride, offset ) {
+	return new ndarray( 'complex128', buffer, [ length ], [ stride ], offset, 'row-major' );
+}
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof zcopy, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function has an arity of 1', function test( t ) {
+	t.strictEqual( zcopy.length, 1, 'has expected arity' );
+	t.end();
+});
+
+tape( 'the function copies values from one-dimensional ndarray `x` into one-dimensional ndarray `y`', function test( t ) {
+	var expected;
+	var xbuf;
+	var ybuf;
+	var x;
+	var y;
+	var v;
+
+	xbuf = new Complex128Array([
+		1.0,  // 1
+		2.0,  // 1
+		3.0,  // 2
+		4.0,  // 2
+		5.0,  // 3
+		6.0   // 3
+	]);
+	ybuf = new Complex128Array([
+		0.0,  // 1
+		0.0,  // 1
+		0.0,  // 2
+		0.0,  // 2
+		0.0,  // 3
+		0.0   // 3
+	]);
+	x = vector( xbuf, 3, 1, 0 );
+	y = vector( ybuf, 3, 1, 0 );
+
+	v = zcopy( [ x, y ] );
+
+	expected = new Complex128Array([
+		1.0,  // 1
+		2.0,  // 1
+		3.0,  // 2
+		4.0,  // 2
+		5.0,  // 3
+		6.0   // 3
+	]);
+	t.strictEqual( v, y, 'returns expected value' );
+	t.strictEqual( isSameComplex128Array( getData( v ), expected ), true, 'returns expected value' );
+
+	xbuf = new Complex128Array([
+		1.0,  // 1
+		2.0,  // 1
+		3.0,  // 2
+		4.0   // 2
+	]);
+	ybuf = new Complex128Array([
+		0.0,  // 1
+		0.0,  // 1
+		0.0,  // 2
+		0.0   // 2
+	]);
+	x = vector( xbuf, 2, 1, 0 );
+	y = vector( ybuf, 2, 1, 0 );
+
+	v = zcopy( [ x, y ] );
+
+	expected = new Complex128Array([
+		1.0,  // 1
+		2.0,  // 1
+		3.0,  // 2
+		4.0   // 2
+	]);
+	t.strictEqual( v, y, 'returns expected value' );
+	t.strictEqual( isSameComplex128Array( getData( v ), expected ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if provided empty ndarrays, the function returns the output ndarray unchanged', function test( t ) {
+	var expected;
+	var xbuf;
+	var ybuf;
+	var x;
+	var y;
+	var v;
+
+	xbuf = new Complex128Array( [] );
+	ybuf = new Complex128Array( [] );
+	x = vector( xbuf, 0, 1, 0 );
+	y = vector( ybuf, 0, 1, 0 );
+
+	v = zcopy( [ x, y ] );
+
+	expected = new Complex128Array( [] );
+	t.strictEqual( v, y, 'returns expected value' );
+	t.strictEqual( isSameComplex128Array( getData( v ), expected ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports one-dimensional ndarrays having non-unit strides', function test( t ) {
+	var expected;
+	var xbuf;
+	var ybuf;
+	var x;
+	var y;
+	var v;
+
+	xbuf = new Complex128Array([
+		1.0,  // 0
+		2.0,  // 0
+		0.0,
+		0.0,
+		3.0,  // 1
+		4.0,  // 1
+		0.0,
+		0.0,
+		5.0,  // 2
+		6.0   // 2
+	]);
+	x = vector( xbuf, 3, 2, 0 );
+
+	ybuf = new Complex128Array([
+		0.0,  // 0
+		0.0,  // 0
+		0.0,  // 1
+		0.0,  // 1
+		0.0,  // 2
+		0.0,  // 2
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	y = vector( ybuf, 3, 1, 0 );
+
+	v = zcopy( [ x, y ] );
+
+	expected = new Complex128Array([
+		1.0,  // 0
+		2.0,  // 0
+		3.0,  // 1
+		4.0,  // 1
+		5.0,  // 2
+		6.0,  // 2
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	t.strictEqual( v, y, 'returns expected value' );
+	t.strictEqual( isSameComplex128Array( getData( v ), expected ), true, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports one-dimensional ndarrays having negative strides', function test( t ) {
+	var expected;
+	var xbuf;
+	var ybuf;
+	var x;
+	var y;
+	var v;
+
+	xbuf = new Complex128Array([
+		1.0,  // 2
+		2.0,  // 2
+		0.0,
+		0.0,
+		3.0,  // 1
+		4.0,  // 1
+		0.0,
+		0.0,
+		5.0,  // 0
+		6.0   // 0
+	]);
+	x = vector( xbuf, 3, -2, 4 );
+
+	ybuf = new Complex128Array([
+		0.0,  // 2
+		0.0,  // 2
+		0.0,  // 1
+		0.0,  // 1
+		0.0,  // 0
+		0.0,  // 0
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	y = vector( ybuf, 3, -1, 2 );
+
+	v = zcopy( [ x, y ] );
+
+	expected = new Complex128Array([
+		1.0,  // 2
+		2.0,  // 2
+		3.0,  // 1
+		4.0,  // 1
+		5.0,  // 0
+		6.0,  // 0
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	t.strictEqual( v, y, 'returns expected value' );
+	t.strictEqual( isSameComplex128Array( getData( v ), expected ), true, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports one-dimensional ndarrays having non-zero offsets', function test( t ) {
+	var expected;
+	var xbuf;
+	var ybuf;
+	var x;
+	var y;
+	var v;
+
+	xbuf = new Complex128Array([
+		0.0,
+		0.0,
+		1.0,   // 0
+		2.0,   // 0
+		0.0,
+		0.0,
+		3.0,   // 1
+		4.0,   // 1
+		0.0,
+		0.0,
+		5.0,   // 2
+		6.0,   // 2
+		0.0,
+		0.0,
+		7.0,   // 3
+		8.0    // 3
+	]);
+	x = vector( xbuf, 4, 2, 1 );
+
+	ybuf = new Complex128Array([
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,   // 0
+		0.0,   // 0
+		0.0,   // 1
+		0.0,   // 1
+		0.0,   // 2
+		0.0,   // 2
+		0.0,   // 3
+		0.0,   // 3
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	y = vector( ybuf, 4, 1, 2 );
+
+	v = zcopy( [ x, y ] );
+
+	expected = new Complex128Array([
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		1.0,   // 0
+		2.0,   // 0
+		3.0,   // 1
+		4.0,   // 1
+		5.0,   // 2
+		6.0,   // 2
+		7.0,   // 3
+		8.0,   // 3
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	t.strictEqual( v, y, 'returns expected value' );
+	t.strictEqual( isSameComplex128Array( getData( v ), expected ), true, 'returns expected value' );
+	t.end();
+});

From 0e88d9d917019967110ea90fbae825e6e8d1f8fc Mon Sep 17 00:00:00 2001
From: kaustubh <kaustubh.mp007@gmail.com>
Date: Tue, 21 Apr 2026 02:07:08 +0530
Subject: [PATCH 2/6] fix line breaks

---
 .../@stdlib/blas/base/ndarray/zcopy/docs/repl.txt   | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
index 76a5c1ede99a..8b7fa58c4879 100644
--- a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
@@ -4,14 +4,13 @@
     floating-point ndarray `x` into a one-dimensional double-precision
     complex floating-point ndarray `y`.
 
-    If provided an empty input ndarray, the function returns the output
-    ndarray unchanged.
+    If provided an empty input ndarray, the function returns the output ndarray
+    unchanged.
 
     Parameters
     ----------
     arrays: ArrayLikeObject<ndarray>
-        Array-like object containing an input ndarray and an output
-        ndarray.
+        Array-like object containing an input ndarray and an output ndarray.
 
     Returns
     -------
@@ -20,8 +19,8 @@
 
     Examples
     --------
-    > var xbuf = new {{alias:@stdlib/array/complex128}}( [ 1.0, 2.0 ] );
-    > var ybuf = new {{alias:@stdlib/array/complex128}}( [ 0.0, 0.0 ] );
+    > var xbuf = new {{alias:@stdlib/array/complex128}}( [ 1.0, 2.0, 3.0, 4.0 ] );
+    > var ybuf = new {{alias:@stdlib/array/complex128}}( [ 0.0, 0.0, 0.0, 0.0 ] );
     > var dt = 'complex128';
     > var sh = [ xbuf.length ];
     > var st = [ 1 ];
@@ -32,7 +31,7 @@
 
     > {{alias}}( [ x, y ] );
     > y
-    <ndarray>[ <Complex128>[ 1.0, 2.0 ] ]
+    <ndarray>[ <Complex128>[ 1.0, 2.0 ], <Complex128>[ 3.0, 4.0 ] ]
 
     See Also
     --------

From 6cbb842d2392cfc9e2b8c71029c761151f1440aa Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Mon, 20 Apr 2026 17:05:11 -0700
Subject: [PATCH 3/6] style: fix line wrapping

Signed-off-by: Athan <kgryte@gmail.com>
---
 .../@stdlib/blas/base/ndarray/zcopy/docs/repl.txt           | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
index 8b7fa58c4879..a5012277b50a 100644
--- a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/docs/repl.txt
@@ -1,8 +1,8 @@
 
 {{alias}}( arrays )
-    Copies values from a one-dimensional double-precision complex
-    floating-point ndarray `x` into a one-dimensional double-precision
-    complex floating-point ndarray `y`.
+    Copies values from a one-dimensional double-precision complex floating-point
+    ndarray `x` into a one-dimensional double-precision complex floating-point
+    ndarray `y`.
 
     If provided an empty input ndarray, the function returns the output ndarray
     unchanged.

From f84264f1532eee48bd246b1d5a97ad23c1e830df Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Mon, 20 Apr 2026 17:07:40 -0700
Subject: [PATCH 4/6] Apply suggestions from code review

Co-authored-by: Athan <kgryte@gmail.com>
Signed-off-by: Athan <kgryte@gmail.com>
---
 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md      | 2 +-
 .../@stdlib/blas/base/ndarray/zcopy/examples/index.js           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
index 149c21c3d62a..6ed4d2b7fcd2 100644
--- a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
@@ -92,7 +92,7 @@ var xbuf = new Complex128Array( discreteUniform( 10, 0, 100, opts ) );
 var x = new ndarray( 'complex128', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( x ) );
 
-var ybuf = new Complex128Array( discreteUniform( xbuf.length*2, 0, 10, opts ) );
+var ybuf = new Complex128Array( discreteUniform( xbuf.length, 0, 10, opts ) );
 var y = new ndarray( 'complex128', ybuf, [ ybuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( y ) );
 
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
index 8788c4826a77..8ffbd0d309a2 100644
--- a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
@@ -32,7 +32,7 @@ var xbuf = new Complex128Array( discreteUniform( 10, 0, 100, opts ) );
 var x = new ndarray( 'complex128', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( x ) );
 
-var ybuf = new Complex128Array( discreteUniform( xbuf.length*2, 0, 10, opts ) );
+var ybuf = new Complex128Array( discreteUniform( xbuf.length, 0, 10, opts ) );
 var y = new ndarray( 'complex128', ybuf, [ ybuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( y ) );
 

From 2198a7dd047ff1616e79dd152609fdf5d5979e13 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Mon, 20 Apr 2026 17:09:12 -0700
Subject: [PATCH 5/6] Apply suggestions from code review

Co-authored-by: Athan <kgryte@gmail.com>
Signed-off-by: Athan <kgryte@gmail.com>
---
 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js
index 64eecf4af422..ebe870bc4c5b 100644
--- a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/test/test.js
@@ -58,7 +58,7 @@ tape( 'the function has an arity of 1', function test( t ) {
 	t.end();
 });
 
-tape( 'the function copies values from one-dimensional ndarray `x` into one-dimensional ndarray `y`', function test( t ) {
+tape( 'the function copies values from a one-dimensional ndarray `x` into a one-dimensional ndarray `y`', function test( t ) {
 	var expected;
 	var xbuf;
 	var ybuf;

From be937366c8192846338d5e44a99a608e36cc99c9 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Mon, 20 Apr 2026 17:12:16 -0700
Subject: [PATCH 6/6] Apply suggestions from code review

Co-authored-by: Athan <kgryte@gmail.com>
Signed-off-by: Athan <kgryte@gmail.com>
---
 lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md      | 2 +-
 .../@stdlib/blas/base/ndarray/zcopy/examples/index.js           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
index 6ed4d2b7fcd2..149c21c3d62a 100644
--- a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
@@ -92,7 +92,7 @@ var xbuf = new Complex128Array( discreteUniform( 10, 0, 100, opts ) );
 var x = new ndarray( 'complex128', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( x ) );
 
-var ybuf = new Complex128Array( discreteUniform( xbuf.length, 0, 10, opts ) );
+var ybuf = new Complex128Array( discreteUniform( xbuf.length*2, 0, 10, opts ) );
 var y = new ndarray( 'complex128', ybuf, [ ybuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( y ) );
 
diff --git a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
index 8ffbd0d309a2..8788c4826a77 100644
--- a/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
+++ b/lib/node_modules/@stdlib/blas/base/ndarray/zcopy/examples/index.js
@@ -32,7 +32,7 @@ var xbuf = new Complex128Array( discreteUniform( 10, 0, 100, opts ) );
 var x = new ndarray( 'complex128', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( x ) );
 
-var ybuf = new Complex128Array( discreteUniform( xbuf.length, 0, 10, opts ) );
+var ybuf = new Complex128Array( discreteUniform( xbuf.length*2, 0, 10, opts ) );
 var y = new ndarray( 'complex128', ybuf, [ ybuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( y ) );