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 | 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 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /**
* @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 numelDimension = require( '@stdlib/ndarray/base/numel-dimension' );
var getStride = require( '@stdlib/ndarray/base/stride' );
var getOffset = require( '@stdlib/ndarray/base/offset' );
var getData = require( '@stdlib/ndarray/base/data-buffer' );
var strided = require( '@stdlib/blas/ext/base/glast-index-of' ).ndarray;
var ndarraylike2scalar = require( '@stdlib/ndarray/base/ndarraylike2scalar' );
// MAIN //
/**
* Returns the last index of a search element in a one-dimensional ndarray.
*
* @param {ArrayLikeObject<Object>} arrays - array-like object containing a one-dimensional input ndarray, a zero-dimensional ndarray containing the search element, and a zero-dimensional ndarray containing the index from which to begin searching
* @returns {integer} index
*
* @example
* var ndarray = require( '@stdlib/ndarray/base/ctor' );
* var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
*
* var xbuf = [ 1.0, 2.0, 4.0, 2.0 ];
* var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
*
* var searchElement = scalar2ndarray( 2.0, {
* 'dtype': 'generic'
* });
*
* var fromIndex = scalar2ndarray( 3, {
* 'dtype': 'generic'
* });
*
* var v = glastIndexOf( [ x, searchElement, fromIndex ] );
* // returns 3
*/
function glastIndexOf( arrays ) {
var searchElement;
var fromIndex;
var N;
var x;
x = arrays[ 0 ];
N = numelDimension( x, 0 );
searchElement = ndarraylike2scalar( arrays[ 1 ] );
fromIndex = ndarraylike2scalar( arrays[ 2 ] );
if ( fromIndex < 0 ) {
fromIndex += N;
if ( fromIndex < 0 ) {
return -1;
}
} else if ( fromIndex >= N ) {
fromIndex = N - 1;
}
return strided( fromIndex+1, searchElement, getData( x ), getStride( x, 0 ), getOffset( x ) ); // eslint-disable-line max-len
}
// EXPORTS //
module.exports = glastIndexOf;
|