| 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: update.h,v 1.5 2004/03/09 21:55:31 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_UPDATE_H |
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| 28 | #define BZ_UPDATE_H |
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| 29 | |
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| 30 | #include <blitz/blitz.h> |
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| 31 | |
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| 32 | BZ_NAMESPACE(blitz) |
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| 33 | |
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| 34 | class _bz_updater_base { }; |
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| 35 | |
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| 36 | #define BZ_DECL_UPDATER(name,op,symbol) \ |
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| 37 | template<typename X, typename Y> \ |
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| 38 | class name : public _bz_updater_base { \ |
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| 39 | public: \ |
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| 40 | static inline void update(X& restrict x, Y y) \ |
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| 41 | { x op y; } \ |
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| 42 | static void prettyPrint(BZ_STD_SCOPE(string) &str) \ |
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| 43 | { str += symbol; } \ |
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| 44 | } |
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| 45 | |
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| 46 | template<typename X, typename Y> |
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| 47 | class _bz_update : public _bz_updater_base { |
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| 48 | public: |
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| 49 | static inline void update(X& restrict x, Y y) |
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| 50 | { x = (X)y; } |
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| 51 | |
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| 52 | static void prettyPrint(BZ_STD_SCOPE(string) &str) |
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| 53 | { str += "="; } |
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| 54 | }; |
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| 55 | |
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| 56 | BZ_DECL_UPDATER(_bz_plus_update, +=, "+="); |
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| 57 | BZ_DECL_UPDATER(_bz_minus_update, -=, "-="); |
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| 58 | BZ_DECL_UPDATER(_bz_multiply_update, *=, "*="); |
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| 59 | BZ_DECL_UPDATER(_bz_divide_update, /=, "/="); |
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| 60 | BZ_DECL_UPDATER(_bz_mod_update, %=, "%="); |
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| 61 | BZ_DECL_UPDATER(_bz_xor_update, ^=, "^="); |
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| 62 | BZ_DECL_UPDATER(_bz_bitand_update, &=, "&="); |
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| 63 | BZ_DECL_UPDATER(_bz_bitor_update, |=, "|="); |
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| 64 | BZ_DECL_UPDATER(_bz_shiftl_update, <<=, "<<="); |
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| 65 | BZ_DECL_UPDATER(_bz_shiftr_update, >>=, ">>="); |
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| 66 | |
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| 67 | BZ_NAMESPACE_END |
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| 68 | |
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| 69 | #endif // BZ_UPDATE_H |
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| 70 | |
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