feat: implement ndarray/srev package

Author: Amansingh0807

lib/node_modules/@stdlib/blas/ext/base/ndarray/srev/README.md

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+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2025 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.
+
+-->
+
+# srev
+
+> Reverse the elements of a one-dimensional single-precision floating-point ndarray.
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var srev = require( '@stdlib/blas/ext/base/ndarray/srev' );
+```
+
+#### srev( arrays )
+
+Reverses the elements of a one-dimensional single-precision floating-point ndarray.
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+
+var xbuf = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+var x = new ndarray( 'float32', xbuf, [ 3 ], [ 1 ], 0, 'row-major' );
+
+srev( [ x ] );
+// xbuf => <Float32Array>[ 3.0, 2.0, 1.0 ]
+```
+
+The function accepts the following arguments:
+
+-   **arrays**: array-like object containing one one-dimensional `Float32` ndarray.
+
+</section>
+
+<!-- /.usage -->
+
+<section class="examples">
+
+## Examples
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var srev = require( '@stdlib/blas/ext/base/ndarray/srev' );
+
+var xbuf, x, i;
+
+xbuf = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+x = new ndarray( 'float32', xbuf, [ 6 ], [ -1 ], 5, 'row-major' );
+
+srev( [ x ] );
+
+console.log( 'x:' );
+for ( i = 0; i < 6; i++ ) {
+    console.log( x.get( i ) );
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep this section sorted. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->

lib/node_modules/@stdlib/blas/ext/base/ndarray/srev/benchmark/benchmark.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 Float32Array = require( '@stdlib/array/float32' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var uniform = require( '@stdlib/random/base/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pkg = require( './../package.json' ).name;
+var srev = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var len;
+	var buf;
+	var x;
+	var i;
+
+	len = 100;
+	buf = new Float32Array( len );
+	for ( i = 0; i < len; i++ ) {
+		buf[ i ] = uniform( -10.0, 10.0 );
+	}
+	x = new ndarray( 'float32', buf, [ len ], [ 1 ], 0, 'row-major' );
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		srev( [ x ] );
+		if ( isnan( x.get( i%len ) ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( x.get( i%len ) ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});

lib/node_modules/@stdlib/blas/ext/base/ndarray/srev/docs/repl.txt

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+
+// Create a Float32Array:
+var Float32Array = require( '@stdlib/array/float32' );
+var xbuf = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+
+// Define a strided array:
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var x = new ndarray( 'float32', xbuf, [ 6 ], [ -1 ], 5, 'row-major' );
+
+// Import the function:
+var srev = require( '@stdlib/blas/ext/base/ndarray/srev' );
+
+// Reverse elements:
+srev( [ x ] );
+
+// Check the underlying buffer:
+xbuf
+// => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ]
+
+// Check the array contents:
+x.data
+// => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ]
+
+// Access elements via the ndarray instance:
+x.get( 0 )
+// => 1.0
+
+x.get( 5 )
+// => 6.0

lib/node_modules/@stdlib/blas/ext/base/ndarray/srev/docs/types/index.d.ts

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+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 { ndarray } from '@stdlib/types/ndarray';
+
+/**
+* Reverses the elements of a one-dimensional single-precision floating-point ndarray.
+*
+* @param arrays - array-like object containing one input ndarray
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+* var ndarray = require( '@stdlib/ndarray/base/ctor' );
+*
+* var xbuf = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var x = new ndarray( 'float32', xbuf, [ 3 ], [ 1 ], 0, 'row-major' );
+*
+* srev( [ x ] );
+* // xbuf => <Float32Array>[ 3.0, 2.0, 1.0 ]
+*/
+declare function srev( arrays: ArrayLike<ndarray> ): void;
+
+
+// EXPORTS //
+
+export = srev;

lib/node_modules/@stdlib/blas/ext/base/ndarray/srev/docs/types/test.ts

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+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 Float32Array = require( '@stdlib/array/float32' );
+import ndarray = require( '@stdlib/ndarray/base/ctor' );
+import srev = require( './index' );
+
+
+// TESTS //
+
+// The function returns void...
+{
+	const xbuf = new Float32Array( 10 );
+	const x = new ndarray( 'float32', xbuf, [ 10 ], [ 1 ], 0, 'row-major' );
+
+	srev( [ x ] ); // $ExpectType void
+}
+
+// The compiler throws an error if the function is provided a first argument which is not an array-like object containing ndarrays...
+{
+	srev( 'abc' ); // $ExpectError
+	srev( 3.14 ); // $ExpectError
+	srev( true ); // $ExpectError
+	srev( false ); // $ExpectError
+	srev( null ); // $ExpectError
+	srev( undefined ); // $ExpectError
+	srev( [ '1' ] ); // $ExpectError
+	srev( {} ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an insufficient number of arguments...
+{
+	srev(); // $ExpectError
+}

lib/node_modules/@stdlib/blas/ext/base/ndarray/srev/examples/index.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 Float32Array = require( '@stdlib/array/float32' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var srev = require( './../lib' );
+
+var xbuf = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var x = new ndarray( 'float32', xbuf, [ 6 ], [ -1 ], 5, 'row-major' );
+
+console.log( 'Original:' );
+console.log( x.data );
+
+srev( [ x ] );
+
+console.log( 'Reversed:' );
+console.log( x.data );

lib/node_modules/@stdlib/blas/ext/base/ndarray/srev/lib/index.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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';
+
+/**
+* Reverse the elements of a one-dimensional single-precision floating-point ndarray.
+*
+* @module @stdlib/blas/ext/base/ndarray/srev
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+* var ndarray = require( '@stdlib/ndarray/base/ctor' );
+* var srev = require( '@stdlib/blas/ext/base/ndarray/srev' );
+*
+* var xbuf = new Float32Array( [ 1.0, 2.0, 3.0 ] );
+* var x = new ndarray( 'float32', xbuf, [ 3 ], [ 1 ], 0, 'row-major' );
+*
+* srev( [ x ] );
+* // xbuf => <Float32Array>[ 3.0, 2.0, 1.0 ]
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;