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 #ifndef FLENS_BLAS_LEVEL1_COTR_TCC
34 #define FLENS_BLAS_LEVEL1_COTR_TCC 1
35 
36 #include <flens/aux/macros.h>
37 #include <flens/blas/blas.h>
38 #include <flens/typedefs.h>
39 
40 #ifdef FLENS_DEBUG_CLOSURES
41 #   include <flens/blas/blaslogon.h>
42 #else
43 #   include <flens/blas/blaslogoff.h>
44 #endif
45 
46 
47 namespace flens { namespace blas {
48 
49 //-- gecotr
50 template <typename MA>
51 void
52 cotr(Transpose trans, GeMatrix<MA> &A)
53 {
54 //
55 //  If matrix is not square no inplace transpose is possible
56 //
57 #   ifndef FLENS_DEBUG_CLOSURES
58 #   ifndef NDEBUG
59     if (trans==Trans || trans==ConjTrans) {
60         ASSERT(A.numRows()==A.numCols());
61     }
62 #   endif
63 #   else
64     if ((trans==Trans || trans==ConjTrans) && A.numRows()!=A.numCols()) {
65         typename GeMatrix<MA>::NoView B = A;
66         FLENS_BLASLOG_TMP_ADD(B);
67 
68         copy(trans, B, A);
69 
70         FLENS_BLASLOG_TMP_REMOVE(B, A);
71         return;
72     }
73 #   endif
74 
75 //
76 //  Quick return if possible
77 //
78     if (trans==NoTrans) {
79         return;
80     }
81 
82     FLENS_BLASLOG_SETTAG("--> ");
83     FLENS_BLASLOG_BEGIN_MCOTR(trans, A);
84 
85 #   ifdef HAVE_CXXBLAS_GECOTR
86     cxxblas::gecotr(MA::order, trans, A.numRows(), A.numCols(),
87                     A.data(), A.leadingDimension());
88 #   else
89     ASSERT(0);
90 #   endif
91 
92     FLENS_BLASLOG_END;
93     FLENS_BLASLOG_UNSETTAG;
94 }
95 
96 } } // namespace blas, flens
97 
98 #endif // FLENS_BLAS_LEVEL1_COTR_TCC