feat: add implementation for number/int16/base/mul

lib/node_modules/@stdlib/number/int16/base/mul/README.md

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+<!--
+
+@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.
+
+-->
+
+# mul
+
+> Perform C-like multiplication of two signed 16-bit integers.
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var mul = require( '@stdlib/number/int16/base/mul' );
+```
+
+#### mul( a, b )
+
+Performs C-like multiplication of two signed 16-bit integers.
+
+```javascript
+var v = mul( -10|0, 4|0 );
+// returns -40
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   The function emulates C-like multiplication of two signed 16-bit integers.
+
+</section>
+
+<!-- /.notes -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
+var INT16_MIN = require( '@stdlib/constants/int16/min' );
+var INT16_MAX = require( '@stdlib/constants/int16/max' );
+var mul = require( '@stdlib/number/int16/base/mul' );
+
+var x = discreteUniform( 100, INT16_MIN, INT16_MAX );
+var y = discreteUniform( 100, INT16_MIN, INT16_MAX );
+
+logEachMap( '%d x %d = %d', x, y, mul );
+```
+
+</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 -->

lib/node_modules/@stdlib/number/int16/base/mul/benchmark/benchmark.js

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+/**
+* @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 minstd = require( '@stdlib/random/base/minstd' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var mul = require( './../lib' );
+var polyfill = require( './../lib/polyfill.js' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var x;
+	var y;
+	var i;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		x = minstd();
+		y = mul( x|0, x|0 );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( format( '%s::polyfill', pkg ), function benchmark( b ) {
+	var x;
+	var y;
+	var i;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		x = minstd();
+		y = polyfill( x|0, x|0 );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( format( '%s::naive_multiplication', pkg ), function benchmark( b ) {
+	var x;
+	var y;
+	var i;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		x = minstd();
+		y = ( x|0 ) * ( x|0 );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});

lib/node_modules/@stdlib/number/int16/base/mul/docs/repl.txt

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+
+{{alias}}( a, b )
+    Performs C-like multiplication of two signed 16-bit integers.
+
+    Parameters
+    ----------
+    a: integer
+        Signed 16-bit integer.
+
+    b: integer
+        Signed 16-bit integer.
+
+    Returns
+    -------
+    out: integer
+        Product.
+
+    Examples
+    --------
+    > var v = {{alias}}( -10|0, 4|0 )
+    -40
+
+    See Also
+    --------
+

lib/node_modules/@stdlib/number/int16/base/mul/docs/types/index.d.ts

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+/*
+* @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
+
+/**
+* Performs C-like multiplication of two signed 16-bit integers.
+*
+* @param a - signed 16-bit integer
+* @param b - signed 16-bit integer
+* @returns product
+*
+* @example
+* var v = mul( -10|0, 4|0 );
+* // returns -40
+*/
+declare function mul( a: number, b: number ): number;
+
+
+// EXPORTS //
+
+export = mul;

lib/node_modules/@stdlib/number/int16/base/mul/docs/types/test.ts

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+/*
+* @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 mul = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number...
+{
+	mul( -10, 4 ); // $ExpectType number
+}
+
+// The compiler throws an error if the function is provided values other than two numbers...
+{
+	mul( true, 3 ); // $ExpectError
+	mul( false, 2 ); // $ExpectError
+	mul( '5', 1 ); // $ExpectError
+	mul( [], 1 ); // $ExpectError
+	mul( {}, 2 ); // $ExpectError
+	mul( ( x: number ): number => x, 2 ); // $ExpectError
+
+	mul( 9, true ); // $ExpectError
+	mul( 9, false ); // $ExpectError
+	mul( 5, '5' ); // $ExpectError
+	mul( 8, [] ); // $ExpectError
+	mul( 9, {} ); // $ExpectError
+	mul( 8, ( x: number ): number => x ); // $ExpectError
+	mul( [], true ); // $ExpectError
+	mul( {}, false ); // $ExpectError
+	mul( false, '5' ); // $ExpectError
+	mul( {}, [] ); // $ExpectError
+	mul( '5', ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided insufficient arguments...
+{
+	mul(); // $ExpectError
+	mul( 3 ); // $ExpectError
+}

lib/node_modules/@stdlib/number/int16/base/mul/examples/index.js

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+/**
+* @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 logEachMap = require( '@stdlib/console/log-each-map' );
+var INT16_MIN = require( '@stdlib/constants/int16/min' );
+var INT16_MAX = require( '@stdlib/constants/int16/max' );
+var mul = require( './../lib' );
+
+var x = discreteUniform( 100, INT16_MIN, INT16_MAX );
+var y = discreteUniform( 100, INT16_MIN, INT16_MAX );
+
+logEachMap( '%d x %d = %d', x, y, mul );

lib/node_modules/@stdlib/number/int16/base/mul/lib/index.js

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+/**
+* @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';
+
+/**
+* Perform C-like multiplication of two signed 16-bit integers.
+*
+* @module @stdlib/number/int16/base/mul
+*
+* @example
+* var mul = require( '@stdlib/number/int16/base/mul' );
+*
+* var v = mul( -10|0, 4|0 );
+* // returns -40
+*/
+
+// MODULES //
+
+var polyfill = require( './polyfill.js' );
+
+
+// MAIN //
+
+var main = polyfill;
+
+
+// EXPORTS //
+
+module.exports = main;