@stdlib/ndarray-base-assert-is-safe-data-type-cast

isSafeCast

Determine whether an ndarray data type can be safely cast to another ndarray data type.

Installation

npm install @stdlib/ndarray-base-assert-is-safe-data-type-cast

Usage

var isSafeCast = require( '@stdlib/ndarray-base-assert-is-safe-data-type-cast' );

isSafeCast( from, to )

Returns a boolean indicating whether an ndarray data type can be safely cast to another ndarray data type.

var bool = isSafeCast( 'float32', 'float64' );
// returns true

bool = isSafeCast( 'float64', 'int32' );
// returns false

Examples

var cartesianSquare = require( '@stdlib/array-cartesian-square' );
var dtypes = require( '@stdlib/ndarray-dtypes' );
var isSafeCast = require( '@stdlib/ndarray-base-assert-is-safe-data-type-cast' );

// Generate a list of dtype pairs:
var dt = cartesianSquare( dtypes() );

// For each data type pair, determine whether one can safely cast from one data type to another...
var i;
for ( i = 0; i < dt.length; i++ ) {
    console.log( '%s. Safe? %s.', dt[i].join( ' => ' ), isSafeCast.apply( null, dt[i] ) );
}

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.