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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';
 
/**
* LAPACK routine to reduce a general real `M-by-N` matrix `A` to upper or lower bi-diagonal form `B` by an orthogonal transformation `Q**T * A * P = B`.
*
* @module @stdlib/lapack/base/dgebrd
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
* var dgebrd = require( '@stdlib/lapack/base/dgebrd' );
*
* var A = new Float64Array( [ 4.0, -1.0, 2.5, 7.0, 8.5, -2.0 ] );
* var D = new Float64Array( [ 0.0, 0.0 ] );
* var E = new Float64Array( [ 0.0 ] );
* var TAUQ = new Float64Array( [ 0.0, 0.0 ] );
* var TAUP = new Float64Array( [ 0.0, 0.0 ] );
* var WORK = new Float64Array( 100 );
*
* dgebrd( 'column-major', 3, 2, A, 3, D, E, TAUQ, TAUP, WORK, 100 );
* // A => <Float64Array>[ ~-4.822, ~-0.113, ~0.283, ~-3.007, ~-10.78, ~-0.237 ]
* // D => <Float64Array>[ ~-4.822, ~-10.78 ]
* // E => <Float64Array>[ ~-3.007 ]
* // TAUQ => <Float64Array>[ ~1.83, ~1.894 ]
* // TAUP => <Float64Array>[ 0.0, 0.0 ]
* // WORK[ 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 dgebrd;
var tmp = tryRequire( join( __dirname, './native.js' ) );
if ( isError( tmp ) ) {
	dgebrd = main;
} else {
	dgebrd = tmp;
}
 
 
// EXPORTS //
 
module.exports = dgebrd;
 
// exports: { "ndarray": "dgebrd.ndarray" }