@stdlib/number-float32-base-from-word/lib/main.js

Create a single-precision floating-point number from an unsigned integer corresponding to an IEEE 754 binary representation.

/**
* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*    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
* limitations under the License.
*/

'use strict';

// MODULES //

var Uint32Array = require( '@stdlib/array-uint32' );
var Float32Array = require( '@stdlib/array-float32' );


// VARIABLES //

var UINT32_VIEW = new Uint32Array( 1 );
var FLOAT32_VIEW = new Float32Array( UINT32_VIEW.buffer );


// MAIN //

/**
* Creates a single-precision floating-point number from an unsigned integer corresponding to an IEEE 754 binary representation.
*
* @param {uinteger32} word - unsigned integer
* @returns {number} single-precision floating-point number
*
* @example
* var word = 1068180177; // => 0 01111111 01010110010001011010001
*
* var f32 = fromWordf( word ); // when printed, implicitly promoted to float64
* // returns 1.3370000123977661
*/
function fromWordf( word ) {
	UINT32_VIEW[ 0 ] = word;
	return FLOAT32_VIEW[ 0 ];
}


// EXPORTS //

module.exports = fromWordf;