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 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 | 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 3x 3x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 68x 68x 68x 68x 16x 20x 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 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 34x 34x 34x 34x 8x 10x 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 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 26x 26x 26x 26x 26x 26x 8x 10x 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 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 15x 15x 15x 15x 5x 6x 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 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 20x 46x 26x 26x 26x 10x 26x 10x 10x 10x 16x 26x 6x 26x 6x 6x 6x 10x 10x 10x 20x 20x 46x 3x 3x 3x 3x 3x | /**
* @license Apache-2.0
*
* Copyright (c) 2024 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 isComplexDataType = require( '@stdlib/array/base/assert/is-complex-floating-point-data-type' );
var isBooleanDataType = require( '@stdlib/array/base/assert/is-boolean-data-type' );
var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
var reinterpret = require( '@stdlib/strided/base/reinterpret-complex' );
var reinterpretBoolean = require( '@stdlib/strided/base/reinterpret-boolean' );
var ind = require( '@stdlib/ndarray/base/ind' ).factory;
// FUNCTIONS //
/**
* Takes elements from an indexed array and assigns the values to elements in an indexed output array.
*
* @private
* @param {Collection} x - input array
* @param {IntegerArray} indices - list of indices
* @param {string} mode - index mode
* @param {Collection} out - output array
* @param {integer} stride - output array stride
* @param {NonNegativeInteger} offset - output array offset
* @returns {Collection} output array
*
* @example
* var x = [ 1, 2, 3, 4 ];
* var indices = [ 3, 1, 2, 0 ];
*
* var out = [ 0, 0, 0, 0 ];
*
* var arr = indexed( x, indices, 'throw', out, 1, 0 );
* // returns [ 4, 2, 3, 1 ]
*/
function indexed( x, indices, mode, out, stride, offset ) {
var getIndex;
var max;
var io;
var i;
var j;
// Resolve a function for returning an index according to the specified index mode:
getIndex = ind( mode );
// Resolve the maximum index:
max = x.length - 1;
// Extract each desired element from the provided array...
io = offset;
for ( i = 0; i < indices.length; i++ ) {
j = getIndex( indices[ i ], max );
out[ io ] = x[ j ];
io += stride;
}
return out;
}
/**
* Takes elements from an accessor array and assigns the values to elements in an accessor output array.
*
* @private
* @param {Object} x - input array object
* @param {Object} indices - index array object
* @param {string} mode - index mode
* @param {Object} out - output array object
* @param {integer} stride - output array stride
* @param {NonNegativeInteger} offset - output array offset
* @returns {Collection} output array
*
* @example
* var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
* var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
*
* var x = toAccessorArray( [ 1, 2, 3, 4 ] );
* var indices = toAccessorArray( [ 3, 1, 2, 0 ] );
*
* var out = toAccessorArray( [ 0, 0, 0, 0 ] );
* var arr = accessors( arraylike2object( x ), arraylike2object( indices ), 'throw', arraylike2object( out ), 1, 0 );
*
* var v = arr.get( 0 );
* // returns 4
*/
function accessors( x, indices, mode, out, stride, offset ) {
var getIndex;
var xdata;
var idata;
var odata;
var xget;
var iget;
var oset;
var max;
var io;
var i;
var j;
xdata = x.data;
idata = indices.data;
odata = out.data;
xget = x.accessors[ 0 ];
iget = indices.accessors[ 0 ];
oset = out.accessors[ 1 ];
// Resolve a function for returning an index according to the specified index mode:
getIndex = ind( mode );
// Resolve the maximum index:
max = xdata.length - 1;
// Extract each desired element from the provided array...
io = offset;
for ( i = 0; i < idata.length; i++ ) {
j = getIndex( iget( idata, i ), max );
oset( odata, io, xget( xdata, j ) );
io += stride;
}
return odata;
}
/**
* Takes elements from a complex array and assigns the values to elements in a complex output array.
*
* @private
* @param {Collection} x - real-valued floating-point input array view
* @param {Object} indices - index array object
* @param {string} mode - index mode
* @param {Collection} out - real-valued floating-point output array view
* @param {integer} stride - output array stride
* @param {NonNegativeInteger} offset - output array offset
* @returns {Collection} output array view
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
* var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
*
* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
* var indices = [ 0, 0, 1, 1 ];
*
* var out = new Float64Array( 8 );
*
* var arr = complex( x, arraylike2object( indices ), 'throw', out, 1, 0 );
* // returns <Float64Array>[ 1.0, 2.0, 1.0, 2.0, 3.0, 4.0, 3.0, 4.0 ]
*/
function complex( x, indices, mode, out, stride, offset ) {
var getIndex;
var idata;
var iget;
var max;
var io;
var so;
var i;
var j;
var k;
idata = indices.data;
iget = indices.accessors[ 0 ];
// Resolve a function for returning an index according to the specified index mode:
getIndex = ind( mode );
// Resolve the maximum index:
max = ( x.length/2 ) - 1; // resolve the length of the original complex array
// Extract each desired element from the provided array...
so = stride * 2; // note: multiply by 2, as real-valued array consists of interleaved real and imaginary components
io = offset * 2;
for ( i = 0; i < idata.length; i++ ) {
j = getIndex( iget( idata, i ), max );
k = j * 2;
out[ io ] = x[ k ];
out[ io+1 ] = x[ k+1 ];
io += so;
}
return out;
}
/**
* Takes elements from a boolean array and assigns the values to elements in a boolean output array.
*
* @private
* @param {Collection} x - boolean value input array view
* @param {Object} indices - index array object
* @param {string} mode - index mode
* @param {Collection} out - boolean value output array view
* @param {integer} stride - output array stride
* @param {NonNegativeInteger} offset - output array offset
* @returns {Collection} output array view
*
* @example
* var Uint8Array = require( '@stdlib/array/uint8' );
* var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
*
* var x = new Uint8Array( [ 1, 0, 0, 1 ] );
* var indices = [ 0, 0, 1, 1 ];
*
* var out = new Uint8Array( 4 );
*
* var arr = boolean( x, arraylike2object( indices ), 'throw', out, 1, 0 );
* // returns <Uint8Array>[ 1, 1, 0, 0 ]
*/
function boolean( x, indices, mode, out, stride, offset ) {
var getIndex;
var idata;
var iget;
var max;
var io;
var i;
var j;
idata = indices.data;
iget = indices.accessors[ 0 ];
// Resolve a function for returning an index according to the specified index mode:
getIndex = ind( mode );
// Resolve the maximum index:
max = x.length - 1;
// Extract each desired element from the provided array...
io = offset;
for ( i = 0; i < idata.length; i++ ) {
j = getIndex( iget( idata, i ), max );
out[ io ] = x[ j ];
io += stride;
}
return out;
}
// MAIN //
/**
* Takes elements from an array and assigns the values to elements in a provided output array.
*
* @param {Collection} x - input array
* @param {IntegerArray} indices - list of indices
* @param {string} mode - index mode
* @param {Collection} out - output array
* @param {integer} stride - output array stride
* @param {NonNegativeInteger} offset - output array offset
* @returns {Collection} output array
*
* @example
* var x = [ 1, 2, 3, 4 ];
* var indices = [ 3, 1, 2, 0 ];
*
* var out = [ 0, 0, 0, 0 ];
* var arr = assign( x, indices, 'throw', out, 1, 0 );
* // returns [ 4, 2, 3, 1 ]
*
* var bool = ( arr === out );
* // returns true
*/
function assign( x, indices, mode, out, stride, offset ) {
var xo;
var io;
var oo;
xo = arraylike2object( x );
io = arraylike2object( indices );
oo = arraylike2object( out );
if (
xo.accessorProtocol ||
io.accessorProtocol ||
oo.accessorProtocol
) {
// Note: we only explicitly support a limited set of dtype-to-dtype pairs, as this function should not be concerned with casting rules, etc. That is left to userland...
if (
isComplexDataType( xo.dtype ) &&
isComplexDataType( oo.dtype )
) {
complex( reinterpret( x, 0 ), io, mode, reinterpret( out, 0 ), stride, offset ); // eslint-disable-line max-len
return out;
}
if (
isBooleanDataType( xo.dtype ) &&
isBooleanDataType( oo.dtype )
) {
boolean( reinterpretBoolean( x, 0 ), io, mode, reinterpretBoolean( out, 0 ), stride, offset ); // eslint-disable-line max-len
return out;
}
accessors( xo, io, mode, oo, stride, offset );
return out;
}
indexed( x, indices, mode, out, stride, offset );
return out;
}
// EXPORTS //
module.exports = assign;
|