npm package: @stdlib/math-base-special-wrapf
Description: Wrap a single-precision floating-point value to the half-open interval [min,max).
Author: The Stdlib Authors
Latest version: 0.1.1

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# wrapf

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> Wrap a single-precision floating-point value to the half-open interval `[min,max)`.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/math-base-special-wrapf
```

</section>

<section class="usage">

## Usage

```javascript
var wrapf = require( '@stdlib/math-base-special-wrapf' );
```

#### wrapf( v, min, max )

Wraps a single-precision floating-point value to the half-open interval `[min,max)`.

```javascript
var v = wrapf( 3.14, 0.0, 5.0 );
// returns ~3.14

v = wrapf( -3.14, 0.0, 5.0 );
// returns ~1.86

v = wrapf( 10.0, 0.0, 5.0 );
// returns 0.0

v = wrapf( -0.0, 0.0, 5.0 );
// returns 0.0

v = wrapf( 0.0, -3.14, -0.0 );
// returns ~-3.14
```

If provided `NaN` for any argument, the function returns `NaN`.

```javascript
var v = wrapf( NaN, 0.0, 5.0 );
// returns NaN

v = wrapf( 0.0, NaN, 5.0 );
// returns NaN

v = wrapf( 3.14, 0.0, NaN );
// returns NaN
```

If provided `min == max`, the function returns `NaN`.

```javascript
var v = wrapf( 3.14, 3.0, 3.0 );
// returns NaN
```

</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 does **not** distinguish between positive and negative zero. Where appropriate, the function returns positive zero.

</section>

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<!-- Package usage examples. -->

<section class="examples">

## Examples

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

```javascript
var uniform = require( '@stdlib/random-array-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var wrapf = require( '@stdlib/math-base-special-wrapf' );

var opts = {
    'dtype': 'float32'
};
var min = uniform( 100, 0.0, 10.0, opts );
var max = uniform( 100, 5.0, 15.0, opts );
var v = uniform( 100, -20.0, 20.0, opts );

logEachMap( 'wrapf(%0.4f,%0.4f,%0.4f) => %0.4f', v, min, max, wrapf );
```

</section>

<!-- /.examples -->

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* * *

<section class="c">

## C APIs

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</section>

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<section class="usage">

### Usage

```c
#include "stdlib/math/base/special/wrapf.h"
```

#### stdlib_base_wrapf( v, min, max )

Wraps a single-precision floating-point value to the half-open interval `[min,max)`.

```c
float v = stdlib_base_wrapf( 3.14f, 0.0f, 5.0f );
// returns ~3.14f

v = stdlib_base_wrapf( -3.14f, 0.0f, 5.0f );
// returns ~1.86f
```

The function accepts the following arguments:

-   **v**: `[in] float` input value to wrap.
-   **min**: `[in] float` minimum value.
-   **max**: `[in] float` maximum value.

```c
float stdlib_base_wrapf( const float v, const float min, const float max )
```

</section>

<!-- /.usage -->

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<section class="notes">

</section>

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

<section class="examples">

### Examples

```c
#include "stdlib/math/base/special/wrapf.h"
#include <stdio.h>

int main( void ) {
    const float min[] = { 0.0f, 0.0f, 0.0f, 0.0f, -3.14f };
    const float max[] = { 5.0f, 5.0f, 5.0f, 5.0f, -0.0f };
    const float v[] = { 3.14f, -3.14f, 10.0f, -0.0f, 0.0f };

    float out;
    int i;
    for ( i = 0; i < 5; i++ ) {
        out = stdlib_base_wrapf( v[i], min[i], max[i] );
        printf( "wrapf(%f,%f,%f) => %f\n", v[i], min[i], max[i], out );
    }
}
```

</section>

<!-- /.examples -->

</section>

<!-- /.c -->

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* * *

## 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].

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---

## License

See [LICENSE][stdlib-license].


## Copyright

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

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