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 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 20x 20x 20x 20x 20x 20x 20x 20x 4x 4x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 20x 38x 24x 24x 24x 38x 38x 16x 20x 3x 3x 3x 3x 3x | /**
* @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 reinterpret = require( '@stdlib/strided/base/reinterpret-complex128' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var real = require( '@stdlib/complex/float64/real' );
var imag = require( '@stdlib/complex/float64/imag' );
// MAIN //
/**
* Replaces double-precision complex floating-point strided array elements equal to `NaN` with a specified scalar constant.
*
* @param {PositiveInteger} N - number of indexed elements
* @param {ComplexLike} alpha - scalar constant
* @param {Complex128Array} x - input array
* @param {integer} strideX - stride length
* @param {NonNegativeInteger} offsetX - starting index
* @returns {Complex128Array} input array
*
* @example
* var Complex128Array = require( '@stdlib/array/complex128' );
* var Complex128 = require( '@stdlib/complex/float64/ctor' );
*
* var x = new Complex128Array( [ NaN, NaN, 3.0, 4.0, NaN, NaN, 7.0, 8.0 ] );
*
* var alpha = new Complex128( 5.0, 5.0 );
*
* zfillNaN( x.length, alpha, x, 1, 0 );
* // x => <Complex128Array>[ 5.0, 5.0, 3.0, 4.0, 5.0, 5.0, 7.0, 8.0 ]
*/
function zfillNaN( N, alpha, x, strideX, offsetX ) {
var view;
var re;
var im;
var ix;
var i;
if ( N <= 0 ) {
return x;
}
// Decompose the constant into its real and imaginary components:
re = real( alpha );
im = imag( alpha );
// Reinterpret the complex input array as a real-valued array:
view = reinterpret( x, 0 );
// Adjust the stride and offset according to real-valued array:
ix = offsetX * 2;
strideX *= 2;
for ( i = 0; i < N; i++ ) {
if ( isnan( view[ ix ] ) || isnan( view[ ix+1 ] ) ) {
view[ ix ] = re;
view[ ix+1 ] = im;
}
ix += strideX;
}
return x;
}
// EXPORTS //
module.exports = zfillNaN;
|