What is @stdlib/constants-float64-high-word-abs-mask?
@stdlib/constants-float64-high-word-abs-mask is a package that provides a constant for the high word mask used to isolate the absolute value of a double-precision floating-point number. This is useful in low-level bit manipulation tasks where you need to work with the binary representation of floating-point numbers.
What are @stdlib/constants-float64-high-word-abs-mask's main functionalities?
High Word Absolute Mask
This feature provides the constant value for the high word absolute mask. The code sample demonstrates how to import the constant and log its value.
const ABS_MASK = require('@stdlib/constants-float64-high-word-abs-mask');
console.log(ABS_MASK); // 2147483647
Other packages similar to @stdlib/constants-float64-high-word-abs-mask
bit-twiddle
The 'bit-twiddle' package offers a variety of bit manipulation utilities, including functions for working with floating-point numbers at the binary level. It provides more general-purpose bit manipulation functions compared to the specific constant provided by @stdlib/constants-float64-high-word-abs-mask.
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FLOAT64_HIGH_WORD_ABS_MASK
High word mask for excluding the sign bit of a double-precision floating-point number.
Installation
npm install @stdlib/constants-float64-high-word-abs-mask
Usage
var FLOAT64_HIGH_WORD_ABS_MASK = require( '@stdlib/constants-float64-high-word-abs-mask' );
FLOAT64_HIGH_WORD_ABS_MASK
High word mask for excluding the sign bit of a double-precision floating-point number.
var bool = ( FLOAT64_HIGH_WORD_ABS_MASK === 0x7fffffff );
Examples
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 );
var out = hi & FLOAT64_HIGH_WORD_ABS_MASK;
out = fromWords( out, getLowWord( x ) );
C APIs
Usage
#include "stdlib/constants/float64/high_word_abs_mask.h"
STDLIB_CONSTANT_FLOAT64_HIGH_WORD_ABS_MASK
Macro for the high word mask for excluding the sign bit of a double-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.
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.