Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2007, 2009 EPITA Research and Development Laboratory (LRDE) 00002 // 00003 // This file is part of Olena. 00004 // 00005 // Olena is free software: you can redistribute it and/or modify it under 00006 // the terms of the GNU General Public License as published by the Free 00007 // Software Foundation, version 2 of the License. 00008 // 00009 // Olena is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 // General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00016 // 00017 // As a special exception, you may use this file as part of a free 00018 // software project without restriction. Specifically, if other files 00019 // instantiate templates or use macros or inline functions from this 00020 // file, or you compile this file and link it with other files to produce 00021 // an executable, this file does not by itself cause the resulting 00022 // executable to be covered by the GNU General Public License. This 00023 // exception does not however invalidate any other reasons why the 00024 // executable file might be covered by the GNU General Public License. 00025 00026 #ifndef MLN_VALUE_INTERVAL_HH 00027 # define MLN_VALUE_INTERVAL_HH 00028 00036 # include <mln/core/concept/object.hh> 00037 00038 00039 namespace mln 00040 { 00041 00042 namespace value 00043 { 00044 00046 00047 template <typename T> 00048 struct interval_ : public Object< interval_<T> > 00049 { 00050 interval_(const T& from, const T& to); 00051 T from, to; 00052 00053 template <typename U> 00054 operator interval_<U>() const; 00055 }; 00056 00057 00058 template <typename T> 00059 interval_<T> 00060 interval(const T& from, const T& to); 00061 00062 00063 # ifndef MLN_INCLUDE_ONLY 00064 00065 template <typename T> 00066 inline 00067 interval_<T>::interval_(const T& from, const T& to) 00068 : from(from), 00069 to(to) 00070 { 00071 mln_precondition(from <= to); 00072 } 00073 00074 template <typename T> 00075 template <typename U> 00076 inline 00077 interval_<T>::operator interval_<U>() const 00078 { 00079 mln_invariant(from <= to); 00080 interval_<U> tmp(from, to); 00081 mln_postcondition(tmp.from <= tmp.to); 00082 return tmp; 00083 } 00084 00085 template <typename T> 00086 inline 00087 interval_<T> 00088 interval(const T& from, const T& to) 00089 { 00090 mln_precondition(from <= to); 00091 interval_<T> tmp(from, to); 00092 return tmp; 00093 } 00094 00095 # endif // ! MLN_INCLUDE_ONLY 00096 00097 } // end of namespace mln::value 00098 00099 } // end of namespace mln 00100 00101 00102 #endif // ! MLN_VALUE_INTERVAL_HH