laqr5.h (flens/lapack/la/laqr5.h)

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/*
*   Copyright (c) 2011, Michael Lehn
*
*   All rights reserved.
*
*   Redistribution and use in source and binary forms, with or without
*   modification, are permitted provided that the following conditions
*   are met:
*
*   1) Redistributions of source code must retain the above copyright
*      notice, this list of conditions and the following disclaimer.
*   2) Redistributions in binary form must reproduce the above copyright
*      notice, this list of conditions and the following disclaimer in
*      the documentation and/or other materials provided with the
*      distribution.
*   3) Neither the name of the FLENS development group nor the names of
*      its contributors may be used to endorse or promote products derived
*      from this software without specific prior written permission.
*
*   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
*   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
*   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
*   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
*   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
*   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
*   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
*   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
*   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
*   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/* Based on
*
      SUBROUTINE DLAQR5( WANTT, WANTZ, KACC22, N, KTOP, KBOT, NSHFTS,
     $                   SR, SI, H, LDH, ILOZ, IHIZ, Z, LDZ, V, LDV, U,
     $                   LDU, NV, WV, LDWV, NH, WH, LDWH )
*
*  -- LAPACK auxiliary routine (version 3.3.0) --
*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
*     November 2010
*/

#ifndef FLENS_LAPACK_LA_LAQR5_H
#define FLENS_LAPACK_LA_LAQR5_H 1

#include <flens/matrixtypes/matrixtypes.h>
#include <flens/vectortypes/vectortypes.h>

namespace flens { namespace lapack {

//== laqr5 =====================================================================
template <typename IndexType, typename VSR, typename VSI, typename MH,
          typename MZ, typename MV, typename MU, typename MWV, typename MWH>
    void
    laqr5(bool                      wantT,
          bool                      wantZ,
          IndexType                 kacc22,
          IndexType                 kTop,
          IndexType                 kBot,
          IndexType                 nShifts,
          DenseVector<VSR>          &sr,
          DenseVector<VSI>          &si,
          GeMatrix<MH>              &H,
          IndexType                 iLoZ,
          IndexType                 iHiZ,
          GeMatrix<MZ>              &Z,
          GeMatrix<MV>              &V,
          GeMatrix<MU>              &U,
          GeMatrix<MWV>             &WV,
          GeMatrix<MWH>             &WH);

//-- forwarding ----------------------------------------------------------------
template <typename IndexType, typename VSR, typename VSI, typename MH,
          typename MZ, typename MV, typename MU, typename MWV, typename MWH>
    void
    laqr5(bool                      wantT,
          bool                      wantZ,
          IndexType                 kacc22,
          IndexType                 kTop,
          IndexType                 kBot,
          IndexType                 nShifts,
          VSR                       &&sr,
          VSI                       &&si,
          MH                        &&H,
          IndexType                 iLoZ,
          IndexType                 iHiZ,
          MZ                        &&Z,
          MV                        &&V,
          MU                        &&U,
          MWV                       &&WV,
          MWH                       &&WH);

} } // namespace lapack, flens

#endif // FLENS_LAPACK_LA_LAQR5_H