npm package: @stdlib/ndarray-same-kind-casts
Description: Return a list of ndarray data types to which a provided ndarray data type can be safely cast or cast within the same kind.
Author: The Stdlib Authors
Latest version: 0.4.1

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# Same Kind Casts

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

> Return a list of ndarray [data types][@stdlib/ndarray/dtypes] to which a provided ndarray [data type][@stdlib/ndarray/dtypes] can be safely cast or cast within the same "kind".

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/ndarray-same-kind-casts
```

</section>

<section class="usage">

## Usage

```javascript
var sameKindCasts = require( '@stdlib/ndarray-same-kind-casts' );
```

#### sameKindCasts( \[dtype] )

If provided a `dtype` argument, returns a list of ndarray [data types][@stdlib/ndarray/dtypes] to which a provided ndarray [data type][@stdlib/ndarray/dtypes] can be safely cast or cast within the same "kind" (e.g., between signed integers or between floating-point numbers).

```javascript
var out = sameKindCasts( 'float64' );
// e.g., returns [ 'float64', 'float32', ... ]
```

If not provided a `dtype` argument, the function returns a casting table.

```javascript
var out = sameKindCasts();
// returns {...}

var f64 = out[ 'float64' ];
// returns {...}

var v = f64[ 'float32' ];
// returns 1
```

If provided an unrecognized or unsupported `dtype`, the function returns `null`.

```javascript
var out = sameKindCasts( 'foo' );
// returns null
```

</section>

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<section class="notes">

</section>

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<section class="examples">

## Examples

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

```javascript
var dtypes = require( '@stdlib/ndarray-dtypes' );
var sameKindCasts = require( '@stdlib/ndarray-same-kind-casts' );

var DTYPES;
var list;
var i;

// Get the list of supported ndarray data types:
DTYPES = dtypes();

// Print the list of ndarray data types to which a data type can be cast...
for ( i = 0; i < DTYPES.length; i++ ) {
    list = sameKindCasts( DTYPES[ i ] );
    console.log( '%s: %s', DTYPES[ i ], list.join( ', ' ) );
}
```

</section>

<!-- /.examples -->

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</section>

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<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/ndarray-casting-modes`][@stdlib/ndarray/casting-modes]</span><span class="delimiter">: </span><span class="description">list of ndarray casting modes.</span>
-   <span class="package-name">[`@stdlib/ndarray-dtypes`][@stdlib/ndarray/dtypes]</span><span class="delimiter">: </span><span class="description">list of ndarray data types.</span>
-   <span class="package-name">[`@stdlib/ndarray-safe-casts`][@stdlib/ndarray/safe-casts]</span><span class="delimiter">: </span><span class="description">return a list of ndarray data types to which a provided ndarray data type can be safely cast.</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

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---

## License

See [LICENSE][stdlib-license].


## Copyright

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

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[@stdlib/ndarray/casting-modes]: https://www.npmjs.com/package/@stdlib/ndarray-casting-modes

[@stdlib/ndarray/dtypes]: https://www.npmjs.com/package/@stdlib/ndarray-dtypes

[@stdlib/ndarray/safe-casts]: https://www.npmjs.com/package/@stdlib/ndarray-safe-casts

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