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CompileTimeError.h
00001 /* 00002 * Tiny Vector Matrix Library 00003 * Dense Vector Matrix Libary of Tiny size using Expression Templates 00004 * 00005 * Copyright (C) 2001 - 2007 Olaf Petzold <opetzold@users.sourceforge.net> 00006 * 00007 * This library is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * This library is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with this library; if not, write to the Free Software 00019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00020 * 00021 * $Id: CompileTimeError.h,v 1.11 2007-06-23 15:58:58 opetzold Exp $ 00022 */ 00023 00024 #ifndef TVMET_COMPILE_TIME_ERROR_H 00025 #define TVMET_COMPILE_TIME_ERROR_H 00026 00027 namespace tvmet { 00028 00029 /** 00030 * \class CompileTimeError CompileTimeError.h "tvmet/CompileTimeError.h" 00031 * \brief Compile Time Assertation classes. 00032 */ 00033 template<bool> struct CompileTimeError; 00034 00035 /** 00036 * \class CompileTimeError<true> CompileTimeError.h "tvmet/CompileTimeError.h" 00037 * \brief Specialized Compile Time Assertation for successfully condition. 00038 * This results in a compiler pass. 00039 */ 00040 template<> struct CompileTimeError<true> { }; 00041 00042 00043 /** 00044 * \def TVMET_CT_CONDITION(XPR, MSG) 00045 * \brief Simplify the Compile Time Assertation by using an expression 00046 * Xpr and an error message MSG. 00047 */ 00048 #define TVMET_CT_CONDITION(XPR, MSG) { \ 00049 CompileTimeError<(XPR)> tvmet_ERROR_##MSG; \ 00050 (void)tvmet_ERROR_##MSG; \ 00051 } 00052 00053 } // namespace tvmet 00054 00055 #endif // TVMET_COMPILE_TIME_ERROR_H 00056 00057 // Local Variables: 00058 // mode:C++ 00059 // tab-width:8 00060 // End:
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