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@stdlib/constants-float64-high-word-abs-mask
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High word mask for excluding the sign bit of a double-precision floating-point number.
npm install @stdlib/constants-float64-high-word-abs-mask
var FLOAT64_HIGH_WORD_ABS_MASK = require( '@stdlib/constants-float64-high-word-abs-mask' );
High word mask for excluding the sign bit of a double-precision floating-point number.
// 0x7fffffff = 2147483647 => 0 11111111111 11111111111111111111
var bool = ( FLOAT64_HIGH_WORD_ABS_MASK === 0x7fffffff );
// returns true
var getHighWord = require( '@stdlib/number-float64-base-get-high-word' );
var getLowWord = require( '@stdlib/number-float64-base-get-low-word' );
var fromWords = require( '@stdlib/number-float64-base-from-words' );
var FLOAT64_HIGH_WORD_ABS_MASK = require( '@stdlib/constants-float64-high-word-abs-mask' );
var x = -11.5;
var hi = getHighWord( x ); // 1 10000000010 01110000000000000000
// returns 3223781376
// Turn off the sign bit and leave other bits unchanged:
var out = hi & FLOAT64_HIGH_WORD_ABS_MASK; // 0 10000000010 01110000000000000000
// returns 1076297728
// Generate a new value:
out = fromWords( out, getLowWord( x ) );
// returns 11.5
#include "stdlib/constants/float64/high_word_abs_mask.h"
Macro for the high word mask for excluding the sign bit of a double-precision floating-point number.
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.
See LICENSE.
Copyright © 2016-2024. The Stdlib Authors.
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High word mask for excluding the sign bit of a double-precision floating-point number.
The npm package @stdlib/constants-float64-high-word-abs-mask receives a total of 352,707 weekly downloads. As such, @stdlib/constants-float64-high-word-abs-mask popularity was classified as popular.
We found that @stdlib/constants-float64-high-word-abs-mask demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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