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feat: add math/base/special/wrapf #3055

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255 changes: 255 additions & 0 deletions lib/node_modules/@stdlib/math/base/special/wrapf/README.md
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<!--

@license Apache-2.0

Copyright (c) 2024 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.

-->

# wrapf

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

<!-- 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 -->

<!-- Package usage documentation. -->

<section class="usage">

## Usage

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

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

Wraps a value on the half-open interval `[min,max)`.
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```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>

<!-- /.notes -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

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

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

var min;
var max;
var v;
var i;

for ( i = 0; i < 100; i++ ) {
min = discreteUniform( 0.0, 10.0 );
max = discreteUniform( 5.0, 15.0 );
v = discreteUniform( -20.0, 20.0 );
console.log( 'wrapf(%d,%d,%d) => %d', v, min, max, wrapf( v, min, max ) );
}
```

</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/special/wrapf.h"
```

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

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

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

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

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 -->

<!-- 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/special/wrapf.h"
#include <stdio.h>

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

<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="references">

</section>

<!-- /.references -->

<!-- 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/math/base/special/clampf`][@stdlib/math/base/special/clampf]</span><span class="delimiter">: </span><span class="description">restrict a single-precision floating-point number to a specified range.</span>

</section>
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<!-- /.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">

<!-- <related-links> -->

[@stdlib/math/base/special/clampf]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/math/base/special/clampf

<!-- </related-links> -->
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</section>

<!-- /.links -->
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/**
* @license Apache-2.0
*
* Copyright (c) 2024 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 randu = require( '@stdlib/random/base/randu' );
var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
var pkg = require( './../package.json' ).name;
var wrapf = require( './../lib' );


// MAIN //

bench( pkg, function benchmark( b ) {
var x;
var y;
var i;

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
x = ( randu()*20.0 ) - 10.0;
y = wrapf( x, -5.0, 5.0 );
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if ( isnanf( y ) ) {
b.fail( 'should not return NaN' );
}
}
b.toc();
if ( isnanf( y ) ) {
b.fail( 'should not return NaN' );
}
b.pass( 'benchmark finished' );
b.end();
});
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/**
* @license Apache-2.0
*
* Copyright (c) 2024 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 resolve = require( 'path' ).resolve;
var bench = require( '@stdlib/bench' );
var randu = require( '@stdlib/random/base/randu' );
var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
var tryRequire = require( '@stdlib/utils/try-require' );
var pkg = require( './../package.json' ).name;


// VARIABLES //

var wrapf = tryRequire( resolve( __dirname, './../lib/native.js' ) );
var opts = {
'skip': ( wrapf instanceof Error )
};


// MAIN //

bench( pkg+'::native', opts, function benchmark( b ) {
var x;
var y;
var i;

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
x = ( randu()*20.0 ) - 10.0;
y = wrapf( x, -5.0, 5.0 );
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if ( isnanf( y ) ) {
b.fail( 'should not return NaN' );
}
}
b.toc();
if ( isnanf( y ) ) {
b.fail( 'should not return NaN' );
}
b.pass( 'benchmark finished' );
b.end();
});
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