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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';
/**
* LAPACK routine to solve a triangular system of equations with the scale factor set to prevent overflow.
*
* @module @stdlib/lapack/base/dlatrs
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
* var dlatrs = require( '@stdlib/lapack/base/dlatrs' );
*
* var A = new Float64Array( [ 2.0, 1.0, -1.0, 0.0, 3.0, 2.0, 0.0, 0.0, 4.0 ] ); // => [ [ 2.0, 1.0, -1.0 ], [ 0.0, 3.0, 2.0 ], [ 0.0, 0.0, 4.0 ] ]
* var X = new Float64Array( [ 5.0, 10.0, 20,0 ] );
* var CNORM = new Float64Array( 3 );
*
* var scale = dlatrs( 'row-major', 'upper', 'no-transpose', 'non-unit', 'no', 3, A, 3, X, CNORM );
* // returns 1.0
* // X => <Float64Array>[ 5.0, 0.0, 5.0 ]
* // CNORM => <Float64Array>[ 0.0, 1.0, 3.0 ]
*/
// 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 dlatrs;
var tmp = tryRequire( join( __dirname, './native.js' ) );
if ( isError( tmp ) ) {
dlatrs = main;
} else {
dlatrs = tmp;
}
// EXPORTS //
module.exports = dlatrs;
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