1 /*
 2  *   Copyright (c) 2011, Michael Lehn
 3  *
 4  *   All rights reserved.
 5  *
 6  *   Redistribution and use in source and binary forms, with or without
 7  *   modification, are permitted provided that the following conditions
 8  *   are met:
 9  *
10  *   1) Redistributions of source code must retain the above copyright
11  *      notice, this list of conditions and the following disclaimer.
12  *   2) Redistributions in binary form must reproduce the above copyright
13  *      notice, this list of conditions and the following disclaimer in
14  *      the documentation and/or other materials provided with the
15  *      distribution.
16  *   3) Neither the name of the FLENS development group nor the names of
17  *      its contributors may be used to endorse or promote products derived
18  *      from this software without specific prior written permission.
19  *
20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /* Based on
34       SUBROUTINE DORG2R( M, N, K, A, LDA, TAU, WORK, INFO )
35  *
36  *  -- LAPACK routine (version 3.2) --
37  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
38  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
39  *     November 2006
40  */
41 
42 #ifndef FLENS_LAPACK_QR_ORG2R_H
43 #define FLENS_LAPACK_QR_ORG2R_H 1
44 
45 #include <flens/matrixtypes/matrixtypes.h>
46 #include <flens/vectortypes/vectortypes.h>
47 
48 namespace flens { namespace lapack {
49 
50 //== org2r =====================================================================
51 template <typename IndexType, typename MA, typename VTAU, typename VWORK>
52     void
53     org2r(IndexType k, GeMatrix<MA> &A, const DenseVector<VTAU> &tau,
54           DenseVector<VWORK> &work);
55 
56 //-- forwarding ----------------------------------------------------------------
57 template <typename IndexType, typename MA, typename VTAU, typename VWORK>
58     void
59     org2r(IndexType k, MA &&A, const VTAU &tau, VWORK &&work);
60 
61 
62 } } // namespace lapack, flens
63 
64 #endif // FLENS_LAPACK_QR_ORG2R_H