@stdlib/constants-float32-abs-mask v0.2.1

FLOAT32_ABS_MASK

Mask for excluding the sign bit of a single-precision floating-point number.

Installation

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

Usage

var FLOAT32_ABS_MASK = require( '@stdlib/constants-float32-abs-mask' );

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 true

Examples

var 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

C APIs

Usage

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

STDLIB_CONSTANT_FLOAT32_ABS_MASK

Macro for the mask for excluding the sign bit 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

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.