76 lines
1.7 KiB
JavaScript
76 lines
1.7 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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/**
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* Single-precision floating-point negative infinity.
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*
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* @module @stdlib/constants/float32/ninf
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* @type {number}
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*
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* @example
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* var FLOAT32_NINF = require( '@stdlib/constants/float32/ninf' );
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* // returns -infinity
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*/
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// MODULES //
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var Float32Array = require( '@stdlib/array/float32' );
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var Uint32Array = require( '@stdlib/array/uint32' );
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// VARIABLES //
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var FLOAT32_VIEW = new Float32Array( 1 );
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var UINT32_VIEW = new Uint32Array( FLOAT32_VIEW.buffer );
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var v;
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// MAIN //
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/**
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* Single-precision floating-point negative infinity.
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*
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* ## Notes
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*
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* Single-precision floating-point negative infinity has the bit sequence
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*
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* ```binarystring
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* 1 11111111 00000000000000000000000
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* ```
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*
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* This bit sequence corresponds to the unsigned 32-bit integer `4286578688` and to the HEX value `0xff800000`.
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*
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* @constant
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* @type {number}
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* @default 0xff800000
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* @see [IEEE 754]{@link https://en.wikipedia.org/wiki/IEEE_754-1985}
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*/
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var FLOAT32_NINF = 0xff800000;
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// Set the ArrayBuffer bit sequence:
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UINT32_VIEW[ 0 ] = FLOAT32_NINF;
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v = FLOAT32_VIEW[ 0 ];
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// EXPORTS //
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module.exports = v;
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