00001 // Copyright (C) 2007, 2008, 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_FUN_P2V_IOTA_HH 00027 # define MLN_FUN_P2V_IOTA_HH 00028 00032 00033 # include <mln/core/concept/function.hh> 00034 00035 00036 namespace mln 00037 { 00038 00039 namespace fun 00040 { 00041 00042 namespace p2v 00043 { 00044 00045 struct iota : public Function_v2v< iota > 00046 { 00047 typedef unsigned result; 00048 00049 iota(); 00050 00051 template <typename P> 00052 unsigned operator()(const P&) const; 00053 00054 unsigned value() const; 00055 void reset() const; 00056 00057 protected: 00058 mutable unsigned i_; 00059 }; 00060 00061 00062 # ifndef MLN_INCLUDE_ONLY 00063 00064 inline 00065 iota::iota() 00066 { 00067 reset(); 00068 } 00069 00070 template <typename P> 00071 inline 00072 unsigned 00073 iota::operator()(const P&) const 00074 { 00075 return ++i_; 00076 } 00077 00078 inline 00079 unsigned 00080 iota::value() const 00081 { 00082 return i_; 00083 } 00084 00085 inline 00086 void 00087 iota::reset() const 00088 { 00089 i_ = 0; 00090 } 00091 00092 # endif // ! MLN_INCLUDE_ONLY 00093 00094 } // end of namespace mln::fun::p2v 00095 00096 } // end of namespace mln::fun 00097 00098 } // end of namespace mln 00099 00100 00101 #endif // ! MLN_FUN_P2V_IOTA_HH
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