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Mask for excluding the sign bit of a single-precision floating-point number.
npm install @stdlib/constants-float32-abs-maskAlternatively,
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var FLOAT32_ABS_MASK = require( '@stdlib/constants-float32-abs-mask' );Mask for excluding the sign bit of a single-precision floating-point number.
// 0x7fffffff = 2147483647 => 0 11111111 11111111111111111111111
var bool = ( FLOAT32_ABS_MASK === 0x7fffffff );
// returns truevar toWord = require( '@stdlib/number-float32-base-to-word' );
var fromWord = require( '@stdlib/number-float32-base-from-word' );
var FLOAT32_ABS_MASK = require( '@stdlib/constants-float32-abs-mask' );
var x = -11.5;
var w = toWord( x ); // 1 10000010 01110000000000000000000
// returns 3223781376
// Turn off the sign bit and leave other bits unchanged:
var out = w & FLOAT32_ABS_MASK; // 0 10000010 01110000000000000000000
// returns 1076297728
// Generate a new value:
out = fromWord( out );
// returns 11.5#include "stdlib/constants/float32/abs_mask.h"Macro for the mask for excluding the sign bit of a single-precision floating-point number.
@stdlib/constants-float32/exponent-mask: mask for the exponent of a single-precision floating-point number.@stdlib/constants-float32/sign-mask: mask for the sign bit of a single-precision floating-point number.@stdlib/constants-float32/significand-mask: mask for the significand of a single-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.
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