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 DGEEVX( BALANC, JOBVL, JOBVR, SENSE, N, A, LDA, WR, WI,
36      $                   VL, LDVL, VR, LDVR, ILO, IHI, SCALE, ABNRM,
37      $                   RCONDE, RCONDV, WORK, LWORK, IWORK, INFO )
38  *
39  *  -- LAPACK driver routine (version 3.3.1) --
40  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
41  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
42  *  -- April 2011                                                      --
43  */
44 
45 #ifndef FLENS_LAPACK_EIG_EVX_H
46 #define FLENS_LAPACK_EIG_EVX_H 1
47 
48 #include <flens/aux/aux.h>
49 #include <flens/matrixtypes/matrixtypes.h>
50 #include <flens/vectortypes/vectortypes.h>
51 
52 namespace flens { namespace lapack {
53 
54 //== evx_wsq (workspace query) ==================================================
55 template <typename MA>
56     Pair<typename GeMatrix<MA>::IndexType>
57     evx_wsq(bool computeVL, bool computeVR, SENSE::Sense sense,
58             GeMatrix<MA> &A);
59 
60 //== evx ========================================================================
61 template <typename MA, typename VWR, typename VWI, typename MVL, typename MVR,
62           typename IndexType, typename VSCALE, typename ABNORM,
63           typename RCONDE, typename RCONDV, typename VWORK, typename VIWORK>
64     typename GeMatrix<MA>::IndexType
65     evx(BALANCE::Balance     balance,
66         bool                 computeVL,
67         bool                 computeVR,
68         SENSE::Sense         sense,
69         GeMatrix<MA>         &A,
70         DenseVector<VWR>     &wr,
71         DenseVector<VWI>     &wi,
72         GeMatrix<MVL>        &VL,
73         GeMatrix<MVR>        &VR,
74         IndexType            &iLo,
75         IndexType            &iHi,
76         DenseVector<VSCALE>  &scale,
77         ABNORM               &abNorm,
78         DenseVector<RCONDE>  &rCondE,
79         DenseVector<RCONDV>  &rCondV,
80         DenseVector<VWORK>   &work,
81         DenseVector<VIWORK>  &iWork);
82 
83 //-- forwarding ----------------------------------------------------------------
84 
85 } } // namespace lapack, flens
86 
87 #endif // FLENS_LAPACK_EIG_EVX_H