High word mask for the exponent of a double-precision floating-point number. 

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  "name": "@stdlib/constants-float64-high-word-exponent-mask",

  "description": "High word mask for the exponent of a double-precision floating-point number.",

    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"

    "url": "git://github.com/stdlib-js/constants-float64-high-word-exponent-mask.git"

    "url": "https://github.com/stdlib-js/stdlib/issues"

    "@stdlib/number-float64-base-get-high-word": "^0.0.x",

    "@stdlib/number-uint32-base-to-binary-string": "^0.0.x",

    "tape": "git+https://github.com/kgryte/tape.git#fix/globby",

    "url": "https://www.patreon.com/athan"

Licensed under the Apache License, Version 2.0 (the "License");

you may not use this file except in compliance with the License.

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] [![dependencies][dependencies-image]][dependencies-url]

> High word mask for the exponent of a [double-precision floating-point number][ieee754].

npm install @stdlib/constants-float64-high-word-exponent-mask

var FLOAT64_HIGH_WORD_EXPONENT_MASK = require( '@stdlib/constants-float64-high-word-exponent-mask' );

High word mask for the exponent of a [double-precision floating-point number][ieee754]. 

// 0x7ff00000 = 2146435072 => 0 11111111111 00000000000000000000

var bool = ( FLOAT64_HIGH_WORD_EXPONENT_MASK === 0x7ff00000 );

-   The higher order word of a [double-precision floating-point number][ieee754] is a 32-bit integer containing the more significant bits which include the exponent and sign.

var getHighWord = require( '@stdlib/number-float64-base-get-high-word' );

hi = getHighWord( x ); // => 0 10000000010 01110000000000000000

// Mask off all bits except for the exponent bits:

out = hi & FLOAT64_HIGH_WORD_EXPONENT_MASK; // => 0 10000000010 00000000000000000000

// Mask on the exponent bits and leave other bits unchanged:

out = hi | FLOAT64_HIGH_WORD_EXPONENT_MASK; // => 0 11111111111 01110000000000000000

This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].

[npm-image]: http://img.shields.io/npm/v/@stdlib/constants-float64-high-word-exponent-mask.svg

[npm-url]: https://npmjs.org/package/@stdlib/constants-float64-high-word-exponent-mask

[test-image]: https://github.com/stdlib-js/constants-float64-high-word-exponent-mask/actions/workflows/test.yml/badge.svg

[test-url]: https://github.com/stdlib-js/constants-float64-high-word-exponent-mask/actions/workflows/test.yml

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/constants-float64-high-word-exponent-mask/main.svg

[coverage-url]: https://codecov.io/github/stdlib-js/constants-float64-high-word-exponent-mask?branch=main

[dependencies-image]: https://img.shields.io/david/stdlib-js/constants-float64-high-word-exponent-mask.svg

[dependencies-url]: https://david-dm.org/stdlib-js/constants-float64-high-word-exponent-mask/main

[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg

[chat-url]: https://gitter.im/stdlib-js/stdlib/

		{
		"name": "@stdlib/constants-float64-high-word-exponent-mask",
		"version": "0.0.5",
		"version": "0.0.6",
		"description": "High word mask for the exponent of a double-precision floating-point number.",
		@@ -5,0 +5,0 @@ "license": "Apache-2.0",

		@@ -51,2 +51,4 @@ <!--

		<!-- eslint-disable id-length -->

		```javascript
		@@ -53,0 +55,0 @@ // 0x7ff00000 = 2146435072 => 0 11111111111 00000000000000000000

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