1 /*
 2  *   Copyright (c) 2012, 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  *
35        SUBROUTINE DLAQP2( M, N, OFFSET, A, LDA, JPVT, TAU, VN1, VN2,
36       $                   WORK )
37  *
38  *  -- LAPACK auxiliary routine (version 3.3.1) --
39  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
40  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
41  *  -- April 2011                                                      --
42  */
43 
44 #ifndef FLENS_LAPACK_QR_LAQP2_H
45 #define FLENS_LAPACK_QR_LAQP2_H 1
46 
47 #include <flens/matrixtypes/matrixtypes.h>
48 #include <flens/vectortypes/vectortypes.h>
49 
50 namespace flens { namespace lapack {
51 
52 //== laqps =====================================================================
53 template <typename MA, typename JPIV, typename VTAU,
54           typename VN1, typename VN2, typename VWORK>
55     void
56     laqp2(typename GeMatrix<MA>::IndexType  offset,
57           GeMatrix<MA>                      &A,
58           DenseVector<JPIV>                 &jPiv,
59           DenseVector<VTAU>                 &tau,
60           DenseVector<VN1>                  &vn1,
61           DenseVector<VN2>                  &vn2,
62           DenseVector<VWORK>                &work);
63 
64 //-- forwarding ----------------------------------------------------------------
65 template <typename MA, typename JPIV, typename VTAU,
66           typename VN1, typename VN2, typename VWORK>
67     void
68     laqp2(typename MA::IndexType  offset,
69           MA                      &&A,
70           JPIV                    &&jPiv,
71           VTAU                    &&tau,
72           VN1                     &&vn1,
73           VN2                     &&vn2,
74           VWORK                   &&work);
75 
76 } } // namespace lapack, flens
77 
78 #endif // FLENS_LAPACK_QR_LAQP2_H