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 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 44x 44x 44x 16x 16x 49x 49x 49x 49x 16x 16x 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';
// MAIN //
/**
* Prepends elements to a strided array by repeating the leading edge element.
*
* @private
* @param {PositiveInteger} N - number of indexed elements in `x`
* @param {NonNegativeInteger} k - number of elements to pad
* @param {Object} x - input array object
* @param {Collection} x.data - input array data
* @param {Array<Function>} x.accessors - array element accessors
* @param {integer} strideX - stride length for `x`
* @param {NonNegativeInteger} offsetX - starting index for `x`
* @param {Object} y - output array object
* @param {Collection} y.data - output array data
* @param {Array<Function>} y.accessors - array element accessors
* @param {integer} strideY - stride length for `y`
* @param {NonNegativeInteger} offsetY - starting index for `y`
* @returns {Object} output array object
*
* @example
* var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
* var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
*
* var x = [ 1.0, 2.0, 3.0, 4.0 ];
* var y = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
*
* gleftPadEdge( 4, 6, arraylike2object( toAccessorArray( x ) ), 1, 0, arraylike2object( toAccessorArray( y ) ), 1, 0 );
* // y => [ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 2.0, 3.0, 4.0 ]
*/
function gleftPadEdge( N, k, x, strideX, offsetX, y, strideY, offsetY ) {
var xbuf;
var ybuf;
var get;
var set;
var ix;
var iy;
var v;
var i;
// Cache references to array data:
xbuf = x.data;
ybuf = y.data;
// Cache references to element accessors:
get = x.accessors[ 0 ];
set = y.accessors[ 1 ];
v = get( xbuf, offsetX );
iy = offsetY;
for ( i = 0; i < k; i++ ) {
set( ybuf, iy, v );
iy += strideY;
}
ix = offsetX;
for ( i = 0; i < N; i++ ) {
set( ybuf, iy, get( xbuf, ix ) );
iy += strideY;
ix += strideX;
}
return y;
}
// EXPORTS //
module.exports = gleftPadEdge;
|