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https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf

Test if a finite single-precision floating-point number is a nonnegative integer.
https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf

assert assertion int integer is isinteger javascript math mathematics node node-js nodejs nonnegative number positive stdlib util utilities utility utils

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Test if a finite single-precision floating-point number is a nonnegative integer.

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README 

        



  

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# isNonNegativeIntegerf



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



> Test if a finite [single-precision floating-point number][ieee754] is a nonnegative integer.



## Installation



```bash

npm install @stdlib/math-base-assert-is-nonnegative-integerf

```



Alternatively,



-   To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]).

-   If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions).

-   For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]).



The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships.



To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.



## Usage



```javascript

var isNonNegativeIntegerf = require( '@stdlib/math-base-assert-is-nonnegative-integerf' );

```



#### isNonNegativeIntegerf( x )



Tests if a finite [single-precision floating-point number][ieee754] is a nonnegative integer.



```javascript

var bool = isNonNegativeIntegerf( 1.0 );

// returns true



bool = isNonNegativeIntegerf( 0.0 );

// returns true



bool = isNonNegativeIntegerf( -10.0 );

// returns false

```



## Notes



-   The function assumes a **finite** number. If provided positive `infinity`, the function will return `true`, when, in fact, the result is undefined. If `x` can be `infinite`, wrap the implementation as follows:



    ```javascript

    function check( x ) {

        return (

            x < Infinity &&

            isNonNegativeIntegerf( x )

        );

    }



    var bool = check( Infinity );

    // returns false

    ```



-   The function does **not** distinguish between positive and negative `zero`.



    ```javascript

    var bool = isNonNegativeIntegerf( 0.0 );

    // returns true



    bool = isNonNegativeIntegerf( -0.0 );

    // returns true

    ```



## Examples



```javascript

var isNonNegativeIntegerf = require( '@stdlib/math-base-assert-is-nonnegative-integerf' );



var bool = isNonNegativeIntegerf( 5.0 );

// returns true



bool = isNonNegativeIntegerf( 0.0 );

// returns true



bool = isNonNegativeIntegerf( -1.0 );

// returns false



bool = isNonNegativeIntegerf( 3.14 );

// returns false



bool = isNonNegativeIntegerf( NaN );

// returns false

```



* * *



## C APIs



### Usage



```c

#include "stdlib/math/base/assert/is_nonnegative_integerf.h"

```



#### stdlib_base_is_nonnegative_integerf( x )



Tests if a finite [single-precision floating-point number][ieee754] is a nonnegative integer.



```c

#include 



bool out = stdlib_base_is_nonnegative_integerf( 1.0f );

// returns true



out = stdlib_base_is_nonnegative_integerf( -10.0f );

// returns false

```



The function accepts the following arguments:



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



```c

bool stdlib_base_is_nonnegative_integerf( const float x );

```



### Examples



```c

#include "stdlib/math/base/assert/is_nonnegative_integerf.h"

#include 

#include 

#include 



int main( void ) {

    float x;

    bool v;

    int i;



    for ( i = 0; i < 100; i++ ) {

        x = ( ( (float)rand() / (float)RAND_MAX ) * 100.0f ) - 50.0f;

        v = stdlib_base_is_nonnegative_integerf( x );

        printf( "x = %f, is_nonnegative_integerf(x) = %s\n", x, ( v ) ? "true" : "false" );

    }

}

```



* * *



## 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]



---



## Copyright



Copyright © 2016-2024. The Stdlib [Authors][stdlib-authors].



[npm-image]: http://img.shields.io/npm/v/@stdlib/math-base-assert-is-nonnegative-integerf.svg

[npm-url]: https://npmjs.org/package/@stdlib/math-base-assert-is-nonnegative-integerf



[test-image]: https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf/actions/workflows/test.yml/badge.svg?branch=main

[test-url]: https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf/actions/workflows/test.yml?query=branch:main



[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/math-base-assert-is-nonnegative-integerf/main.svg

[coverage-url]: https://codecov.io/github/stdlib-js/math-base-assert-is-nonnegative-integerf?branch=main



[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg

[chat-url]: https://app.gitter.im/#/room/#stdlib-js_stdlib:gitter.im



[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/math-base-assert-is-nonnegative-integerf/tree/deno

[deno-readme]: https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf/blob/deno/README.md

[umd-url]: https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf/tree/umd

[umd-readme]: https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf/blob/umd/README.md

[esm-url]: https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf/tree/esm

[esm-readme]: https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf/blob/esm/README.md

[branches-url]: https://github.com/stdlib-js/math-base-assert-is-nonnegative-integerf/blob/main/branches.md



[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985