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Masked Unary Signatures

Generate a list of masked unary interface signatures from strided array data types.

Installation

npm install @stdlib/strided-base-mskunary-dtype-signatures

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 signatures = require( '@stdlib/strided-base-mskunary-dtype-signatures' );

signatures( dtypes1, dtypes2[, options] )

Generates a list of masked unary interface signatures from strided array data types.

var dtypes = [
    'float64',
    'float32',
    'int32',
    'uint8'
];

var sigs = signatures( dtypes, dtypes );
// e.g., returns [ 'float32', 'uint8', 'float32', ... ]

The function accepts the following arguments:

• dtypes1: list of supported data types for the input argument.
• dtypes2: list of supported data types for the output argument.
• options: options.

The function accepts the following options:

• enums: boolean flag indicating whether to return signatures as a list of data type enumeration constants. Default: false.

When the enums options is false, the function returns an array of data type strings. To return data type enumeration constants, set the enums option to true.

var dtypes = [
    'float64',
    'float32',
    'int32',
    'uint8'
];
var options = {
    'enums': true
};

var sigs = signatures( dtypes, dtypes, options );
// returns [...]

Notes

• The function returns a strided array having a stride length of 3 (i.e., every 3 elements define a masked unary interface signature).
• For each signature (i.e., set of three consecutive non-overlapping strided array elements), the first element is the input data type, the second element is the mask data type, and the last element is the return data type.
• All signatures follow type promotion rules.
• The mask array data type is always uint8.

Examples

var dtypes = require( '@stdlib/strided-dtypes' );
var replace = require( '@stdlib/string-replace' );
var signatures = require( '@stdlib/strided-base-mskunary-dtype-signatures' );

// Get the list of supported strided array data types:
var dt = dtypes();

// Generate unary interface signatures:
var sigs = signatures( dt, dt );

// Format the output:
var str = replace( JSON.stringify( sigs ), /("[^"]+","[^"]+","[^"]+"),/g, '$1,\n' );
console.log( str );

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See Also

• @stdlib/strided-base/mskunary-signature-callbacks: assign callbacks to masked unary interfaces according to type promotion rules.

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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.