TooN: internal/size_mismatch.hh Source File

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internal/size_mismatch.hh

    00001 // -*- c++ -*-
    00002
    00003 // Copyright (C) 2009 Tom Drummond (twd20@cam.ac.uk),
    00004 // Ed Rosten (er258@cam.ac.uk)
    00005 //
    00006 // This file is part of the TooN Library.  This library is free
    00007 // software; you can redistribute it and/or modify it under the
    00008 // terms of the GNU General Public License as published by the
    00009 // Free Software Foundation; either version 2, or (at your option)
    00010 // 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
    00015 // GNU General Public License for more details.
    00016
    00017 // You should have received a copy of the GNU General Public License along
    00018 // with this library; see the file COPYING.  If not, write to the Free
    00019 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
    00020 // USA.
    00021
    00022 // As a special exception, you may use this file as part of a free software
    00023 // library without restriction.  Specifically, if other files instantiate
    00024 // templates or use macros or inline functions from this file, or you compile
    00025 // this file and link it with other files to produce an executable, this
    00026 // file does not by itself cause the resulting executable to be covered by
    00027 // the GNU General Public License.  This exception does not however
    00028 // invalidate any other reasons why the executable file might be covered by
    00029 // the GNU General Public License.
    00030
    00031 namespace TooN {
    00032
    00033 // class to generate compile time error
    00034 // general case which doesn't exist
    00035 template<int Size1, int Size2>
    00036 struct SizeMismatch_;
    00037
    00038 // special cases which do exist
    00039 template<int Size>
    00040 struct SizeMismatch_<Size,Size>{
    00041   static inline void test(int, int){}
    00042 };
    00043
    00044 template<int Size>
    00045 struct SizeMismatch_<Dynamic,Size>{
    00046   static inline void test(int size1, int size2){
    00047     if(size1!=size2){
    00048       #ifdef TOON_TEST_INTERNALS
    00049         throw Internal::SizeMismatch();
    00050       #elif !defined TOON_NDEBUG_SIZE
    00051           std::cerr << "TooN Size Mismatch" << std::endl;
    00052           std::abort();
    00053       #endif
    00054     }
    00055   }
    00056 };
    00057
    00058 template<int Size>
    00059 struct SizeMismatch_<Size,Dynamic>{
    00060   static inline void test(int size1, int size2){
    00061     if(size1!=size2){
    00062       #ifdef TOON_TEST_INTERNALS
    00063         throw Internal::SizeMismatch();
    00064       #elif !defined TOON_NDEBUG_SIZE
    00065           std::cerr << "TooN Size Mismatch" << std::endl;
    00066           std::abort();
    00067       #endif
    00068     }
    00069   }
    00070 };
    00071
    00072 template <>
    00073 struct SizeMismatch_<Dynamic,Dynamic>{
    00074   static inline void test(int size1, int size2){
    00075     if(size1!=size2){
    00076       #ifdef TOON_TEST_INTERNALS
    00077         throw Internal::SizeMismatch();
    00078       #elif !defined TOON_NDEBUG_SIZE
    00079           std::cerr << "TooN Size Mismatch" << std::endl;
    00080           std::abort();
    00081       #endif
    00082     }
    00083   }
    00084 };
    00085
    00086 #if 0
    00087 namespace Internal
    00088 {
    00089     struct BadSize;
    00090 }
    00091 #endif
    00092
    00093 #ifdef TOON_TEST_INTERNALS
    00094 template<int Size1, int Size2>
    00095 struct SizeMismatch_
    00096 {
    00097     static inline void test(int, int)
    00098     {
    00099         throw Internal::StaticSizeMismatch();
    00100     }
    00101 };
    00102 #endif
    00103
    00104 template<int Size1, int Size2>
    00105 struct SizeMismatch
    00106 {
    00107     static inline void test(int s1, int s2)
    00108     {
    00109         SizeMismatch_< (Size1 == Dynamic || Size1 == Resizable)?Dynamic:Size1,
    00110                        (Size2 == Dynamic || Size2 == Resizable)?Dynamic:Size2 >::test(s1, s2);
    00111     }
    00112 };
    00113
    00114 }