@stdlib/ndarray-safe-casts

Return a list of ndarray data types to which a provided ndarray data type can be safely cast.

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README

Safe Casts

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Return a list of ndarray data types to which a provided ndarray data type can be safely cast.

Installation

npm install @stdlib/ndarray-safe-casts

Usage

var safeCasts = require( '@stdlib/ndarray-safe-casts' );

safeCasts( [dtype] )

If provided a dtype argument, returns a list of ndarray data types to which a provided ndarray data type can be safely cast.

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

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

var out = safeCasts();
// returns {...}

var f32 = out[ 'float32' ];
// returns {...}

var v = f32[ 'float64' ];
// returns 1

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

var out = safeCasts( 'foo' );
// returns null

Examples

var dtypes = require( '@stdlib/ndarray-dtypes' );
var safeCasts = require( '@stdlib/ndarray-safe-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 safely cast...
for ( i = 0; i < DTYPES.length; i++ ) {
    list = safeCasts( DTYPES[ i ] );
    console.log( '%s: %s', DTYPES[ i ], list.join( ', ' ) );
}

See Also

Notice

This package is part of 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, see the main project repository.

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License

See LICENSE.

Copyright

Copyright © 2016-2022. The Stdlib Authors.