npm package: @stdlib/math-base-assert-uint32-is-pow2
Description: Test whether an unsigned integer is a power of 2.
Author: The Stdlib Authors
Latest version: 0.3.2

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# isPow2Uint32

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

> Test whether an unsigned integer is a power of 2.

<section class="installation">

## Installation

```bash
npm install @stdlib/math-base-assert-uint32-is-pow2
```

</section>

<section class="usage">

## Usage

```javascript
var isPow2Uint32 = require( '@stdlib/math-base-assert-uint32-is-pow2' );
```

#### isPow2Uint32( x )

Tests whether `x` is a power of 2.

```javascript
var bool = isPow2Uint32( 2 );
// returns true

bool = isPow2Uint32( 5 );
// returns false
```

</section>

<!-- /.usage -->

<section class="notes">

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var isPow2Uint32 = require( '@stdlib/math-base-assert-uint32-is-pow2' );

var i;

for ( i = 0; i < 100; i++ ) {
    console.log( 'isPow2( %d ) = %s', i, isPow2Uint32( i ) );
}
```

</section>

<!-- /.examples -->

<!-- C interface documentation. -->

* * *

<section class="c">

## C APIs

<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->

<section class="intro">

</section>

<!-- /.intro -->

<!-- C usage documentation. -->

<section class="usage">

### Usage

```c
#include "stdlib/math/base/assert/uint32_is_pow2.h"
```

#### stdlib_base_uint32_is_pow2( x )

Tests whether an unsigned integer is a power of 2.

```c
#include <stdbool.h>

bool out = stdlib_base_uint32_is_pow2( 5 );
// returns false

out = stdlib_base_uint32_is_pow2( 2 );
// returns true
```

The function accepts the following arguments:

-   **x**: `[in] uint32_t` input value.

```c
bool stdlib_base_uint32_is_pow2( const uint32_t x );
```

</section>

<!-- /.usage -->

<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

</section>

<!-- /.notes -->

<!-- C API usage examples. -->

<section class="examples">

### Examples

```c
#include "stdlib/math/base/assert/uint32_is_pow2.h"
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>

int main( void ) {
    const uint32_t x[] = { 0, 1, 2, 3, 4, 5, 8, 10, 16, 1024 };
    bool b;
    int i;

    for ( i = 0; i < 10; i++ ) {
        b = stdlib_base_uint32_is_pow2( x[ i ] );
        printf( "Value: %u. is a power of 2? %s.\n", x[ i ], ( b ) ? "True" : "False" );
    }
}
```

</section>

<!-- /.examples -->

</section>

<!-- /.c -->

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

<section class="related">

</section>

<!-- /.related -->

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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

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---

## License

See [LICENSE][stdlib-license].


## Copyright

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

</section>

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