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* @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';
/**
* Take elements from one of two double-precision floating-point strided arrays depending on a condition.
*
* @module @stdlib/blas/ext/base/dwhere
*
* @example
* var BooleanArray = require( '@stdlib/array/bool' );
* var Float64Array = require( '@stdlib/array/float64' );
* var dwhere = require( '@stdlib/blas/ext/base/dwhere' );
*
* var condition = new BooleanArray( [ true, false, true ] );
* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
* var y = new Float64Array( [ 4.0, 5.0, 6.0 ] );
* var out = new Float64Array( [ 0.0, 0.0, 0.0 ] );
*
* dwhere( 3, condition, 1, x, 1, y, 1, out, 1 );
* // out => <Float64Array>[ 1.0, 5.0, 3.0 ]
*
* @example
* var BooleanArray = require( '@stdlib/array/bool' );
* var Float64Array = require( '@stdlib/array/float64' );
* var dwhere = require( '@stdlib/blas/ext/base/dwhere' );
*
* var condition = new BooleanArray( [ true, false, true, false ] );
* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
* var y = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
* var out = new Float64Array( [ 0.0, 0.0, 0.0, 0.0 ] );
*
* dwhere.ndarray( 4, condition, 1, 0, x, 1, 0, y, 1, 0, out, 1, 0 );
* // out => <Float64Array>[ 1.0, 6.0, 3.0, 8.0 ]
*/
// MODULES //
var join = require( 'path' ).join;
var tryRequire = require( '@stdlib/utils/try-require' );
var isError = require( '@stdlib/assert/is-error' );
var main = require( './main.js' );
// MAIN //
var dwhere;
var tmp = tryRequire( join( __dirname, './native.js' ) );
if ( isError( tmp ) ) {
dwhere = main;
} else {
dwhere = tmp;
}
// EXPORTS //
module.exports = dwhere;
// exports: { "ndarray": "dwhere.ndarray" }
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