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  *
35        SUBROUTINE DTRSYL( TRANA, TRANB, ISGN, M, N, A, LDA, B, LDB, C,
36       $                   LDC, SCALE, INFO )
37  *
38  *  -- LAPACK 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 
45 #ifndef FLENS_LAPACK_EIG_TRSYL_H
46 #define FLENS_LAPACK_EIG_TRSYL_H 1
47 
48 #include <cmath>
49 
50 namespace flens { namespace lapack {
51 
52 //== trsyl =====================================================================
53 template <typename ISGN, typename MA, typename MB, typename MC, typename SCALE>
54     typename GeMatrix<MC>::IndexType
55     trsyl(Transpose             transA,
56           Transpose             transB,
57           ISGN                  iSign,
58           const GeMatrix<MA>    &A,
59           const GeMatrix<MB>    &B,
60           GeMatrix<MC>          &C,
61           SCALE                 &scale);
62 
63 //-- forwarding ----------------------------------------------------------------
64 template <typename ISGN, typename MA, typename MB, typename MC, typename SCALE>
65     typename MC::IndexType
66     trsyl(Transpose             transA,
67           Transpose             transB,
68           ISGN                  iSign,
69           const GeMatrix<MA>    &A,
70           const GeMatrix<MB>    &B,
71           MC                    &&C,
72           SCALE                 &&scale);
73 
74 } } // namespace lapack, flens
75 
76 #endif // FLENS_LAPACK_EIG_TRSYL_H