Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /**
* @license Apache-2.0
*
* Copyright (c) 2026 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 fromWords = require( '@stdlib/number/float64/base/from-words' );
var toWords = require( '@stdlib/number/float64/base/to-words' );
// MAIN //
/**
* Returns the next representable double-precision floating-point number less than the input value.
*
* ## Notes
*
* - The input value is assumed to be a positive finite number, as these are the only values arising in the root-finding brackets of this package.
*
* @private
* @param {PositiveNumber} x - input value
* @returns {number} next representable value toward negative infinity
*/
function floatPrior( x ) {
var w;
w = toWords( x );
if ( w[ 1 ] === 0 ) {
w[ 0 ] -= 1;
w[ 1 ] = 0xffffffff;
} else {
w[ 1 ] -= 1;
}
return fromWords( w[ 0 ], w[ 1 ] );
}
// EXPORTS //
module.exports = floatPrior;
|