@stdlib/array-base-assert-is-mostly-safe-data-type-cast

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isMostlySafeCast

Determine whether an array data type can be safely cast or, for floating-point data types, downcast to another array data type.

Installation

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

Usage

var isMostlySafeCast = require( '@stdlib/array-base-assert-is-mostly-safe-data-type-cast' );

isMostlySafeCast( from, to )

Returns a boolean indicating whether an array data type can be safely cast or, for floating-point data types, downcast to another array data type.

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

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

Examples

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

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

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

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License

See LICENSE.

Copyright

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