Milena (Olena)
User documentation 2.0a Id
|
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_MATH_ABS_HH 00027 # define MLN_MATH_ABS_HH 00028 00032 00033 # include <cmath> 00034 # include <cstdlib> 00035 00036 # include <mln/value/int_u.hh> 00037 00038 00039 namespace mln 00040 { 00041 00042 namespace math 00043 { 00044 00046 template <typename T> 00047 T abs(const T& v); 00048 00056 int abs(int v); 00057 long abs(long v); 00058 00059 float abs(float v); 00060 double abs(double v); 00061 long double abs(long double v); 00063 00065 template <unsigned n> 00066 value::int_u<n> abs(const value::int_u<n>& v); 00067 00068 00069 00070 # ifndef MLN_INCLUDE_ONLY 00071 00072 template <typename T> 00073 inline 00074 T abs(const T& v) 00075 { 00076 return v >= 0 ? v : static_cast<T>(-v); 00077 } 00078 00079 inline int abs(int v) { return std::abs(v); } 00080 inline long abs(long v) { return std::abs(v); } 00081 00082 inline float abs(float v) { return std::abs(v); } 00083 inline double abs(double v) { return std::abs(v); } 00084 inline long double abs(long double v) { return std::abs(v); } 00085 00086 template <unsigned n> 00087 inline 00088 value::int_u<n> abs(const value::int_u<n>& v) 00089 { 00090 return v; 00091 } 00092 00093 # endif // ! MLN_INCLUDE_ONLY 00094 00095 } // end of namespace mln::math 00096 00097 } // end of namespace mln 00098 00099 00100 #endif // ! MLN_MATH_ABS_HH