1 | // -*- C++ -*- |
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2 | /*************************************************************************** |
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3 | * blitz/meta/vecassign.h TinyVector assignment metaprogram |
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4 | * |
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5 | * $Id: vecassign.h,v 1.6 2005/05/07 04:17:57 julianc Exp $ |
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6 | * |
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7 | * Copyright (C) 1997-2001 Todd Veldhuizen <tveldhui@oonumerics.org> |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or |
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10 | * modify it under the terms of the GNU General Public License |
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11 | * as published by the Free Software Foundation; either version 2 |
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12 | * of the License, or (at your option) any later version. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * Suggestions: blitz-dev@oonumerics.org |
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20 | * Bugs: blitz-bugs@oonumerics.org |
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21 | * |
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22 | * For more information, please see the Blitz++ Home Page: |
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23 | * http://oonumerics.org/blitz/ |
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24 | * |
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25 | ***************************************************************************/ |
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26 | |
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27 | #ifndef BZ_META_VECASSIGN_H |
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28 | #define BZ_META_VECASSIGN_H |
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29 | |
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30 | BZ_NAMESPACE(blitz) |
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31 | |
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32 | template<int N, int I> |
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33 | class _bz_meta_vecAssign { |
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34 | public: |
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35 | static const int loopFlag = (I < N-1) ? 1 : 0; |
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36 | |
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37 | template<typename T_vector, typename T_expr, typename T_updater> |
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38 | static inline void fastAssign(T_vector& vec, T_expr expr, T_updater u) |
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39 | { |
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40 | u.update(vec[I], expr._bz_fastAccess(I)); |
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41 | _bz_meta_vecAssign<N * loopFlag, (I+1) * loopFlag> |
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42 | ::fastAssign(vec,expr,u); |
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43 | } |
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44 | |
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45 | template<typename T_vector, typename T_expr, typename T_updater> |
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46 | static inline void assign(T_vector& vec, T_expr expr, T_updater u) |
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47 | { |
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48 | u.update(vec[I], expr[I]); |
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49 | _bz_meta_vecAssign<N * loopFlag, (I+1) * loopFlag> |
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50 | ::assign(vec,expr,u); |
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51 | } |
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52 | |
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53 | template<typename T_vector, typename T_numtype, typename T_updater> |
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54 | static inline void assignWithArgs(T_vector& vec, T_updater u, |
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55 | T_numtype x0, T_numtype x1=0, T_numtype x2=0, T_numtype x3=0, |
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56 | T_numtype x4=0, T_numtype x5=0, T_numtype x6=0, T_numtype x7=0, |
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57 | T_numtype x8=0, T_numtype x9=0) |
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58 | { |
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59 | u.update(vec[I], x0); |
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60 | _bz_meta_vecAssign<N * loopFlag, (I+1) * loopFlag> |
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61 | ::assignWithArgs(vec, u, x1, x2, x3, x4, x5, x6, x7, x8, x9); |
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62 | } |
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63 | |
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64 | }; |
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65 | |
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66 | template<> |
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67 | class _bz_meta_vecAssign<0,0> { |
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68 | public: |
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69 | template<typename T_vector, typename T_expr, typename T_updater> |
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70 | static inline void fastAssign(T_vector&, T_expr, T_updater) |
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71 | { } |
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72 | |
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73 | template<typename T_vector, typename T_expr, typename T_updater> |
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74 | static inline void assign(T_vector&, T_expr, T_updater) |
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75 | { } |
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76 | |
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77 | template<typename T_vector, typename T_numtype, typename T_updater> |
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78 | static inline void assignWithArgs(T_vector&, T_updater, |
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79 | T_numtype, T_numtype =0, T_numtype =0, T_numtype =0, |
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80 | T_numtype =0, T_numtype =0, T_numtype =0, T_numtype =0, |
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81 | T_numtype =0, T_numtype =0) |
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82 | { |
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83 | } |
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84 | }; |
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85 | |
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86 | BZ_NAMESPACE_END |
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87 | |
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88 | #endif // BZ_META_ASSIGN_H |
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