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* @license Apache-2.0
*
* Copyright (c) 2025 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 FLOAT16_SIGNIFICAND_MASK = require( '@stdlib/constants/float16/significand-mask' );
var getWord = require( '@stdlib/number/float16/base/to-word' );
// MAIN //
/**
* Returns an integer corresponding to the significand of a half-precision floating-point number.
*
* @param {number} x - half-precision floating-point number
* @returns {uinteger16} significand
*
* @example
* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
*
* var s = significand( toFloat16( 3.14 ) ); // => 1001001000
* // returns 584
*
* @example
* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
*
* var s = significand( toFloat16( 3.14e-6 ) ); // => 0000110101
* // returns 53
*
* @example
* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
*
* var s = significand( toFloat16( -3.14 ) ); // => 1001001000
* // returns 584
*
* @example
* var s = significand( 0.0 ); // => 0000000000
* // returns 0
*
* @example
* var s = significand( NaN ); // => 1000000000
* // returns 512
*/
function significand( x ) {
// Convert `x` to an unsigned 16-bit integer corresponding to the IEEE 754 binary representation:
var w = getWord( x );
// Apply a mask to isolate only the significand bits:
return w & FLOAT16_SIGNIFICAND_MASK;
}
// EXPORTS //
module.exports = significand;
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