npm package: @stdlib/number-int32-base-mul
Description: Perform C-like multiplication of two signed 32-bit integers.
Author: The Stdlib Authors
Latest version: 0.0.1

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<details>
  <summary>
    About stdlib...
  </summary>
  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
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# imul

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Perform C-like multiplication of two signed 32-bit integers.

<section class="intro">

</section>

<!-- /.intro -->

<section class="installation">

## Installation

```bash
npm install @stdlib/number-int32-base-mul
```

</section>

<section class="usage">

## Usage

```javascript
var imul = require( '@stdlib/number-int32-base-mul' );
```

#### imul( a, b )

Performs C-like multiplication of two signed 32-bit integers.

```javascript
var v = imul( -10|0, 4|0 );
// returns -40

v = imul( 1073741824|0, -5|0 ); // 2^30 * -5 = -5368709120 => 32-bit integer overflow
// returns -1073741824
```

</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 32-bit integers.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var discreteUniform = require( '@stdlib/random-base-discrete-uniform' ).factory;
var INT32_MIN = require( '@stdlib/constants-int32-min' );
var INT32_MAX = require( '@stdlib/constants-int32-max' );
var imul = require( '@stdlib/number-int32-base-mul' );

var randi;
var a;
var b;
var y;
var i;

randi = discreteUniform( INT32_MIN, INT32_MAX );

for ( i = 0; i < 100; i++ ) {
    a = randi()|0;
    b = randi()|0;
    y = imul( a, b );
    console.log( '%d x %d = %d', a, b, y );
}
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/number-int32/base/muldw`][@stdlib/number/int32/base/muldw]</span><span class="delimiter">: </span><span class="description">compute the double word product of two signed 32-bit integers.</span>

</section>

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

<!-- /.stdlib -->

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[npm-url]: https://npmjs.org/package/@stdlib/number-int32-base-mul

[test-image]: https://github.com/stdlib-js/number-int32-base-mul/actions/workflows/test.yml/badge.svg?branch=v0.0.1
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[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/number-int32-base-mul/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/number-int32-base-mul?branch=main

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[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/number-int32-base-mul/tree/deno
[deno-readme]: https://github.com/stdlib-js/number-int32-base-mul/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/number-int32-base-mul/tree/umd
[umd-readme]: https://github.com/stdlib-js/number-int32-base-mul/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/number-int32-base-mul/tree/esm
[esm-readme]: https://github.com/stdlib-js/number-int32-base-mul/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/number-int32-base-mul/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/number-int32-base-mul/main/LICENSE

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[@stdlib/number/int32/base/muldw]: https://www.npmjs.com/package/@stdlib/number-int32-base-muldw

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</section>

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