time-to-botec

Benchmark sampling in different programming languages
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main.js (2003B)

      1 /**
      2 * @license Apache-2.0
      3 *
      4 * Copyright (c) 2018 The Stdlib Authors.
      5 *
      6 * Licensed under the Apache License, Version 2.0 (the "License");
      7 * you may not use this file except in compliance with the License.
      8 * You may obtain a copy of the License at
      9 *
     10 *    http://www.apache.org/licenses/LICENSE-2.0
     11 *
     12 * Unless required by applicable law or agreed to in writing, software
     13 * distributed under the License is distributed on an "AS IS" BASIS,
     14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15 * See the License for the specific language governing permissions and
     16 * limitations under the License.
     17 */
     18 
     19 'use strict';
     20 
     21 // MAIN //
     22 
     23 /**
     24 * Converts a single-precision floating-point number to a signed 32-bit integer.
     25 *
     26 * @param {number} x - single-precision floating-point number
     27 * @returns {integer32} signed 32-bit integer
     28 *
     29 * @example
     30 * var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
     31 * var y = float32ToInt32( float64ToFloat32( 4294967295.0 ) );
     32 * // returns 0
     33 *
     34 * @example
     35 * var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
     36 * var y = float32ToInt32( float64ToFloat32( 3.14 ) );
     37 * // returns 3
     38 *
     39 * @example
     40 * var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
     41 * var y = float32ToInt32( float64ToFloat32( -3.14 ) );
     42 * // returns -3
     43 *
     44 * @example
     45 * var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
     46 * var y = float32ToInt32( float64ToFloat32( NaN ) );
     47 * // returns 0
     48 *
     49 * @example
     50 * var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
     51 * var y = float32ToInt32( float64ToFloat32( Infinity ) );
     52 * // returns 0
     53 *
     54 * @example
     55 * var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
     56 * var y = float32ToInt32( float64ToFloat32( -Infinity ) );
     57 * // returns 0
     58 */
     59 function float32ToInt32( x ) {
     60 	// NOTE: we could also use typed-arrays to achieve the same end.
     61 	return x|0; // asm type annotation
     62 }
     63 
     64 
     65 // EXPORTS //
     66 
     67 module.exports = float32ToInt32;