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Next Data Type

Return the next larger ndarray data type of the same kind.

Installation

npm install @stdlib/ndarray-next-dtype

Alternatively,

• To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch (see README).
• If you are using Deno, visit the deno branch (see README for usage intructions).
• For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the umd branch (see README).

The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

Usage

var nextDataType = require( '@stdlib/ndarray-next-dtype' );

nextDataType( [dtype] )

If provided a dtype argument, returns the next larger ndarray data type of the same kind.

var out = nextDataType( 'float32' );
// returns 'float64'

If a data type does not have a next larger data type or the next larger data type is not supported, the function returns -1.

var out = nextDataType( 'float64' );
// returns -1

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

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

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

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

Examples

var dtypes = require( '@stdlib/ndarray-dtypes' );
var nextDataType = require( '@stdlib/ndarray-next-dtype' );

var DTYPES;
var dt;
var i;

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

// Print the next larger data type for each supported data type...
for ( i = 0; i < DTYPES.length; i++ ) {
    dt = nextDataType( DTYPES[ i ] );
    console.log( '%s => %s', DTYPES[ i ], dt );
}

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See Also

• @stdlib/ndarray-dtypes: list of ndarray data types.
• @stdlib/ndarray-promotion-rules: return the ndarray data type with the smallest size and closest kind to which ndarray data types can be safely cast.
• @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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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.

Community

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License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.