| [1022] | 1 | // -*- C++ -*- |
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| 2 | /*************************************************************************** |
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| 3 | * blitz/update.h Declaration of the _bz_XXXX updater classes |
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| 4 | * |
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| 5 | * $Id$ |
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| 6 | * |
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| 7 | * Copyright (C) 1997-2011 Todd Veldhuizen <tveldhui@acm.org> |
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| 8 | * |
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| 9 | * This file is a part of Blitz. |
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| 10 | * |
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| 11 | * Blitz is free software: you can redistribute it and/or modify |
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| 12 | * it under the terms of the GNU Lesser General Public License |
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| 13 | * as published by the Free Software Foundation, either version 3 |
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| 14 | * of the License, or (at your option) any later version. |
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| 15 | * |
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| 16 | * Blitz is distributed in the hope that it will be useful, |
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| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 19 | * GNU Lesser General Public License for more details. |
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| 20 | * |
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| 21 | * You should have received a copy of the GNU Lesser General Public |
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| 22 | * License along with Blitz. If not, see <http://www.gnu.org/licenses/>. |
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| 23 | * |
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| 24 | * Suggestions: blitz-devel@lists.sourceforge.net |
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| 25 | * Bugs: blitz-support@lists.sourceforge.net |
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| 26 | * |
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| 27 | * For more information, please see the Blitz++ Home Page: |
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| 28 | * https://sourceforge.net/projects/blitz/ |
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| 29 | * |
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| 30 | ***************************************************************************/ |
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| 31 | |
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| 32 | #ifndef BZ_UPDATE_H |
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| 33 | #define BZ_UPDATE_H |
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| 34 | |
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| 35 | #include <blitz/blitz.h> |
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| 36 | |
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| 37 | BZ_NAMESPACE(blitz) |
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| 38 | |
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| 39 | class _bz_updater_base { }; |
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| 40 | |
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| 41 | #define BZ_DECL_UPDATER(name,op,symbol) \ |
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| 42 | template<typename T_dest, typename T_source> \ |
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| 43 | class name : public _bz_updater_base { \ |
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| 44 | public: \ |
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| 45 | template<typename T1, typename T2> struct updateCast { \ |
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| 46 | typedef name<T1, T2> T_updater; \ |
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| 47 | }; \ |
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| 48 | \ |
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| 49 | static inline void update(T_dest& restrict x, T_source y) \ |
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| 50 | { x op y; } \ |
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| 51 | static void prettyPrint(BZ_STD_SCOPE(string) &str) \ |
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| 52 | { str += symbol; } \ |
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| 53 | } |
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| 54 | |
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| 55 | template<typename T_dest, typename T_source> |
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| 56 | class _bz_update : public _bz_updater_base { |
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| 57 | public: |
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| 58 | |
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| 59 | /** Traits class used to get an updater with different types. */ |
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| 60 | template<typename T1, typename T2> struct updateCast { |
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| 61 | typedef _bz_update<T1, T2> T_updater; |
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| 62 | }; |
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| 63 | |
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| 64 | static inline void update(T_dest& restrict x, T_source y) |
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| 65 | { x = /*(X)*/y; } |
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| 66 | |
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| 67 | static void prettyPrint(BZ_STD_SCOPE(string) &str) |
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| 68 | { str += "="; } |
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| 69 | }; |
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| 70 | |
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| 71 | BZ_DECL_UPDATER(_bz_plus_update, +=, "+="); |
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| 72 | BZ_DECL_UPDATER(_bz_minus_update, -=, "-="); |
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| 73 | BZ_DECL_UPDATER(_bz_multiply_update, *=, "*="); |
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| 74 | BZ_DECL_UPDATER(_bz_divide_update, /=, "/="); |
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| 75 | BZ_DECL_UPDATER(_bz_mod_update, %=, "%="); |
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| 76 | BZ_DECL_UPDATER(_bz_xor_update, ^=, "^="); |
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| 77 | BZ_DECL_UPDATER(_bz_bitand_update, &=, "&="); |
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| 78 | BZ_DECL_UPDATER(_bz_bitor_update, |=, "|="); |
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| 79 | BZ_DECL_UPDATER(_bz_shiftl_update, <<=, "<<="); |
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| 80 | BZ_DECL_UPDATER(_bz_shiftr_update, >>=, ">>="); |
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| 81 | |
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| 82 | BZ_NAMESPACE_END |
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| 83 | |
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| 84 | #endif // BZ_UPDATE_H |
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| 85 | |
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