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@stdlib/constants-float32-significand-mask

v0.2.2

Published

Mask for the significand of a single-precision floating-point number.

Downloads

196

Readme

FLOAT32_SIGNIFICAND_MASK

NPM version Build Status Coverage Status

Mask for the significand of a single-precision floating-point number.

Installation

npm install @stdlib/constants-float32-significand-mask

Usage

var FLOAT32_SIGNIFICAND_MASK = require( '@stdlib/constants-float32-significand-mask' );

FLOAT32_SIGNIFICAND_MASK

Mask for the significand of a single-precision floating-point number.

// 0x007fffff = 8388607 => 0 00000000 11111111111111111111111
var bool = ( FLOAT32_SIGNIFICAND_MASK === 0x007fffff );
// returns true

Examples

var toWord = require( '@stdlib/number-float32-base-to-word' );
var FLOAT32_SIGNIFICAND_MASK = require( '@stdlib/constants-float32-significand-mask' );

var x = 11.5;
var w = toWord( x ); // 0 10000010 01110000000000000000000
// returns 1094189056

// Mask off all bits except for the significand bits:
var out = w & FLOAT32_SIGNIFICAND_MASK; // 0 00000000 01110000000000000000000
// returns 3670016

// Mask on the significand bits and leave other bits unchanged:
out = w | FLOAT32_SIGNIFICAND_MASK; // 0 10000010 11111111111111111111111
// returns 1098907647

C APIs

Usage

#include "stdlib/constants/float32/significand_mask.h"

STDLIB_CONSTANT_FLOAT32_SIGNIFICAND_MASK

Macro for the mask for the significand of a single-precision floating-point number.


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

Chat


License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.