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_MATH_ROUND_SAT_HH 00027 # define MLN_MATH_ROUND_SAT_HH 00028 00034 # include <cmath> 00035 00036 # include <mln/core/concept/function.hh> 00037 # include <mln/trait/value_.hh> 00038 00039 00040 00041 namespace mln 00042 { 00043 00044 namespace math 00045 { 00046 00047 00048 template <typename R> 00049 struct round_sat_ : public Function_v2v< round_sat_<R> > 00050 { 00051 typedef R result; 00052 00053 template <typename T> 00054 result operator()(const T& v) const; 00055 00056 }; 00057 00058 00059 # ifndef MLN_INCLUDE_ONLY 00060 00061 template <typename R> 00062 template <typename T> 00063 inline 00064 R round_sat_<R>::operator()(const T& v) const 00065 { 00066 long int l = (long int)(v + 0.49999); // FIXME: !!! 00067 return 00068 l < mln_min(R) 00069 ? mln_min(R) 00070 : (l > mln_max(R) 00071 ? mln_max(R) 00072 : R(l)); 00073 } 00074 00075 # endif // ! MLN_INCLUDE_ONLY 00076 00077 } // end of namespace mln::math 00078 00079 } // end of namespace mln 00080 00081 00082 #endif // ! MLN_MATH_ROUND_SAT_HH
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