Mercurial > jwe > octave
annotate liboctave/numeric/CmplxHESS.cc @ 21136:7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Remove statements after call to handler that are no longer reachable.
Place input validation first and immediately call handler if necessary.
Change if/error_handler/else to if/error_handler and re-indent code.
* Array-util.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc,
CNDArray.cc, CRowVector.cc, CSparse.cc, DiagArray2.cc, MArray.cc,
PermMatrix.cc, Sparse.cc, Sparse.h, chMatrix.cc, chNDArray.cc, dColVector.cc,
dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc,
fCColVector.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc,
fColVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc,
idx-vector.cc, CmplxAEPBAL.cc, CmplxCHOL.cc, CmplxGEPBAL.cc, CmplxHESS.cc,
CmplxLU.cc, CmplxQR.cc, CmplxSCHUR.cc, CmplxSVD.cc, DASPK.cc, EIG.cc, LSODE.cc,
Quad.cc, SparseCmplxCHOL.cc, SparseCmplxLU.cc, SparseCmplxQR.cc, SparseQR.cc,
SparsedbleCHOL.cc, SparsedbleLU.cc, base-lu.cc, bsxfun-defs.cc, dbleAEPBAL.cc,
dbleCHOL.cc, dbleGEPBAL.cc, dbleHESS.cc, dbleLU.cc, dbleQR.cc, dbleSCHUR.cc,
dbleSVD.cc, eigs-base.cc, fCmplxAEPBAL.cc, fCmplxCHOL.cc, fCmplxLU.cc,
fCmplxQR.cc, fCmplxSCHUR.cc, fEIG.cc, floatAEPBAL.cc, floatCHOL.cc,
floatGEPBAL.cc, floatHESS.cc, floatLU.cc, floatQR.cc, floatSCHUR.cc,
floatSVD.cc, lo-specfun.cc, oct-fftw.cc, oct-rand.cc, oct-spparms.cc,
sparse-base-chol.cc, sparse-dmsolve.cc, file-ops.cc, lo-sysdep.cc,
mach-info.cc, oct-env.cc, oct-syscalls.cc, cmd-edit.cc, cmd-hist.cc,
data-conv.cc, lo-ieee.cc, lo-regexp.cc, oct-base64.cc, oct-shlib.cc,
pathsearch.cc, singleton-cleanup.cc, sparse-util.cc, unwind-prot.cc:
Remove statements after call to handler that are no longer reachable.
Place input validation first and immediately call handler if necessary.
Change if/error_handler/else to if/error_handler and re-indent code.
| author | Rik <rik@octave.org> |
|---|---|
| date | Sat, 23 Jan 2016 13:52:03 -0800 |
| parents | 4197fc428c7d |
| children | f7121e111991 |
| rev | line source |
|---|---|
| 457 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1994-2015 John W. Eaton |
| 457 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 457 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 457 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 1192 | 24 #include <config.h> |
| 457 | 25 #endif |
| 26 | |
| 27 #include "CmplxHESS.h" | |
| 1847 | 28 #include "f77-fcn.h" |
| 457 | 29 #include "lo-error.h" |
| 30 | |
| 31 extern "C" | |
| 32 { | |
| 4552 | 33 F77_RET_T |
| 34 F77_FUNC (zgebal, ZGEBAL) (F77_CONST_CHAR_ARG_DECL, | |
| 11495 | 35 const octave_idx_type&, Complex*, |
| 36 const octave_idx_type&, octave_idx_type&, | |
| 37 octave_idx_type&, double*, octave_idx_type& | |
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38 F77_CHAR_ARG_LEN_DECL); |
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39 |
| 4552 | 40 F77_RET_T |
| 11495 | 41 F77_FUNC (zgehrd, ZGEHRD) (const octave_idx_type&, const octave_idx_type&, |
| 42 const octave_idx_type&, Complex*, | |
| 43 const octave_idx_type&, Complex*, Complex*, | |
| 44 const octave_idx_type&, octave_idx_type&); | |
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45 |
| 4552 | 46 F77_RET_T |
| 11495 | 47 F77_FUNC (zunghr, ZUNGHR) (const octave_idx_type&, const octave_idx_type&, |
| 48 const octave_idx_type&, Complex*, | |
| 49 const octave_idx_type&, Complex*, Complex*, | |
| 50 const octave_idx_type&, octave_idx_type&); | |
| 457 | 51 |
| 4552 | 52 F77_RET_T |
| 53 F77_FUNC (zgebak, ZGEBAK) (F77_CONST_CHAR_ARG_DECL, | |
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54 F77_CONST_CHAR_ARG_DECL, |
| 11495 | 55 const octave_idx_type&, const octave_idx_type&, |
| 56 const octave_idx_type&, double*, | |
| 57 const octave_idx_type&, Complex*, | |
| 58 const octave_idx_type&, octave_idx_type& | |
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59 F77_CHAR_ARG_LEN_DECL |
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60 F77_CHAR_ARG_LEN_DECL); |
| 457 | 61 } |
| 62 | |
| 5275 | 63 octave_idx_type |
| 457 | 64 ComplexHESS::init (const ComplexMatrix& a) |
| 65 { | |
| 5275 | 66 octave_idx_type a_nr = a.rows (); |
| 67 octave_idx_type a_nc = a.cols (); | |
| 1932 | 68 |
| 69 if (a_nr != a_nc) | |
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70 (*current_liboctave_error_handler) ("ComplexHESS requires square matrix"); |
| 457 | 71 |
| 1932 | 72 char job = 'N'; |
| 73 char side = 'R'; | |
| 74 | |
| 5275 | 75 octave_idx_type n = a_nc; |
| 76 octave_idx_type lwork = 32 * n; | |
| 77 octave_idx_type info; | |
| 78 octave_idx_type ilo; | |
| 79 octave_idx_type ihi; | |
| 457 | 80 |
| 1932 | 81 hess_mat = a; |
| 82 Complex *h = hess_mat.fortran_vec (); | |
| 457 | 83 |
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84 Array<double> scale (dim_vector (n, 1)); |
| 1932 | 85 double *pscale = scale.fortran_vec (); |
| 86 | |
| 4552 | 87 F77_XFCN (zgebal, ZGEBAL, (F77_CONST_CHAR_ARG2 (&job, 1), |
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88 n, h, n, ilo, ihi, pscale, info |
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89 F77_CHAR_ARG_LEN (1))); |
| 457 | 90 |
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91 Array<Complex> tau (dim_vector (n-1, 1)); |
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92 Complex *ptau = tau.fortran_vec (); |
| 457 | 93 |
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94 Array<Complex> work (dim_vector (lwork, 1)); |
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95 Complex *pwork = work.fortran_vec (); |
| 457 | 96 |
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97 F77_XFCN (zgehrd, ZGEHRD, (n, ilo, ihi, h, n, ptau, pwork, lwork, info)); |
| 457 | 98 |
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99 unitary_hess_mat = hess_mat; |
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100 Complex *z = unitary_hess_mat.fortran_vec (); |
| 457 | 101 |
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102 F77_XFCN (zunghr, ZUNGHR, (n, ilo, ihi, z, n, ptau, pwork, |
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103 lwork, info)); |
| 457 | 104 |
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105 F77_XFCN (zgebak, ZGEBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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106 F77_CONST_CHAR_ARG2 (&side, 1), |
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107 n, ilo, ihi, pscale, n, z, n, info |
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108 F77_CHAR_ARG_LEN (1) |
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109 F77_CHAR_ARG_LEN (1))); |
| 457 | 110 |
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111 // If someone thinks of a more graceful way of |
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112 // doing this (or faster for that matter :-)), |
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113 // please let me know! |
| 457 | 114 |
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115 if (n > 2) |
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116 for (octave_idx_type j = 0; j < a_nc; j++) |
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117 for (octave_idx_type i = j+2; i < a_nr; i++) |
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118 hess_mat.elem (i, j) = 0; |
| 457 | 119 |
| 1932 | 120 return info; |
| 457 | 121 } |