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* @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 isndarrayLike = require( '@stdlib/assert/is-ndarray-like' );
var isIntegerArray = require( '@stdlib/assert/is-integer-array' );
var getShape = require( '@stdlib/ndarray/shape' );
var emptyLike = require( '@stdlib/ndarray/empty-like' );
var normalizeIndex = require( '@stdlib/ndarray/base/normalize-index' );
var assign = require( '@stdlib/ndarray/base/assign' );
var format = require( '@stdlib/string/format' );
// MAIN //
/**
* Returns an ndarray with element at specified indices replaced by a provided value.
*
* @param {ndarray} x - input ndarray
* @param {IntegerArray} indices - indices of the element to replace
* @param {*} value - value to set
* @throws {TypeError} First argument must be an ndarray
* @throws {TypeError} Second argument must be an array of integers
* @throws {RangeError} Third argument must be an array of valid indices
* @returns {ndarray} output ndarray
*
* @example
* var ndarray = require( '@stdlib/ndarray/ctor' );
*
* var buffer = [ 1, 2, 3, 4 ];
* var shape = [ 2, 2 ];
* var order = 'row-major';
* var strides = [ 2, 1 ];
* var offset = 0;
*
* var x = ndarray( 'generic', buffer, shape, strides, offset, order );
*
* var out = ndarrayWith( x, [ 0, 0 ], 5 );
* // returns <ndarray>
*
* var v = out.get( 0, 0 );
* // returns 5
*/
function ndarrayWith( x, indices, value ) {
var args;
var out;
var idx;
var sh;
var i;
if ( !isndarrayLike( x ) ) {
throw new TypeError( format( 'invalid argument. First argument must be an ndarray. Value: `%s`.', x ) );
}
if ( !isIntegerArray( indices ) ) {
throw new TypeError( format( 'invalid argument. Second argument must be an array of integers. Value: `%s`.', indices ) );
}
// Copy the input array:
sh = getShape( x );
out = emptyLike( x );
assign( [ x, out ] );
// Resolve the provided indices:
args = [];
for ( i = 0; i < sh.length; i++ ) {
idx = normalizeIndex( indices[ i ], sh[ i ] );
if ( idx === -1 ) {
throw new RangeError( format( 'invalid argument. Second argument must be an array of valid indices. Value: %s`.`', indices ) );
}
args.push( idx );
}
args.push( value );
// Set the element at the specified indices:
out.set.apply( out, args );
return out;
}
// EXPORTS //
module.exports = ndarrayWith;
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