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1 /* |
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2 |
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3 Copyright (C) 2004, 2005, 2007 David Bateman |
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4 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Andy Adler |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 |
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25 #if !defined (octave_sparse_base_lu_h) |
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26 #define octave_sparse_base_lu_h 1 |
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27 |
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28 #include "MArray.h" |
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29 |
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30 template <class lu_type, class lu_elt_type, class p_type, class p_elt_type> |
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31 class |
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32 sparse_base_lu |
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33 { |
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34 public: |
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35 |
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36 sparse_base_lu (void) { } |
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37 |
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38 sparse_base_lu (const sparse_base_lu& a) |
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39 : Lfact (a.Lfact), Ufact (a.Ufact), cond (a.cond), P (a.P), Q (a.Q) { } |
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40 |
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41 sparse_base_lu& operator = (const sparse_base_lu& a) |
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42 { |
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43 if (this != &a) |
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44 { |
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45 Lfact = a.Lfact; |
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46 Ufact = a.Ufact; |
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47 cond = a.cond; |
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48 P = a.P; |
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49 Q = a.Q; |
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50 } |
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51 return *this; |
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52 } |
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53 |
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54 ~sparse_base_lu (void) { } |
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55 |
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56 lu_type L (void) const { return Lfact; } |
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57 |
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58 lu_type U (void) const { return Ufact; } |
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59 |
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60 p_type Pc (void) const; |
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61 |
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62 p_type Pr (void) const; |
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63 |
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64 const octave_idx_type * row_perm (void) const { return P.fortran_vec (); } |
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65 |
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66 const octave_idx_type * col_perm (void) const { return Q.fortran_vec (); } |
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67 |
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68 double rcond (void) const { return cond; } |
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69 |
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70 protected: |
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71 |
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72 lu_type Lfact; |
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73 lu_type Ufact; |
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74 |
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75 double cond; |
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76 |
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77 MArray<octave_idx_type> P; |
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78 MArray<octave_idx_type> Q; |
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79 }; |
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80 |
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81 #endif |
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82 |
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83 /* |
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84 ;;; Local Variables: *** |
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85 ;;; mode: C++ *** |
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86 ;;; End: *** |
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87 */ |
