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        DOUBLE PRECISION FUNCTION DLANGE( NORM, M, N, A, LDA, WORK )
36  *
37  *  -- LAPACK auxiliary routine (version 3.2) --
38  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
39  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
40  *     November 2006
41 
42  and
43 
44        DOUBLE PRECISION FUNCTION DLANTR( NORM, UPLO, DIAG, M, N, A, LDA,
45       $                 WORK )
46  *
47  *  -- LAPACK auxiliary routine (version 3.2) --
48  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
49  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
50  *     November 2006
51  */
52 
53 #ifndef FLENS_LAPACK_AUX_LAN_H
54 #define FLENS_LAPACK_AUX_LAN_H 1
55 
56 #include <flens/matrixtypes/matrixtypes.h>
57 #include <flens/vectortypes/vectortypes.h>
58 
59 namespace flens { namespace lapack {
60 
61 //== lan(ge) ===================================================================
62 template <typename MA, typename VWORK>
63     typename GeMatrix<MA>::ElementType
64     lan(Norm norm, const GeMatrix<MA> &A);
65 
66 template <typename MA, typename VWORK>
67     typename GeMatrix<MA>::ElementType
68     lan(Norm norm, const GeMatrix<MA> &A, DenseVector<VWORK> &work);
69 
70 //== lan(tr) ===================================================================
71 template <typename MA, typename VWORK>
72     typename TrMatrix<MA>::ElementType
73     lan(Norm norm, const TrMatrix<MA> &A);
74 
75 template <typename MA, typename VWORK>
76     typename TrMatrix<MA>::ElementType
77     lan(Norm norm, const TrMatrix<MA> &A, DenseVector<VWORK> &work);
78 
79 //-- forwarding ----------------------------------------------------------------
80 template <typename MA, typename VWORK>
81     typename MA::ElementType
82     lan(Norm norm, const MA &A);
83 
84 template <typename MA, typename VWORK>
85     typename MA::ElementType
86     lan(Norm norm, const MA &A, VWORK &&work);
87 
88 } } // namespace lapack, flens
89 
90 #endif // FLENS_LAPACK_AUX_LAN_H