00001 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development 00002 // Laboratory (LRDE) 00003 // 00004 // This file is part of Olena. 00005 // 00006 // Olena is free software: you can redistribute it and/or modify it under 00007 // the terms of the GNU General Public License as published by the Free 00008 // Software Foundation, version 2 of the License. 00009 // 00010 // Olena is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 // General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00017 // 00018 // As a special exception, you may use this file as part of a free 00019 // software project without restriction. Specifically, if other files 00020 // instantiate templates or use macros or inline functions from this 00021 // file, or you compile this file and link it with other files to produce 00022 // an executable, this file does not by itself cause the resulting 00023 // executable to be covered by the GNU General Public License. This 00024 // exception does not however invalidate any other reasons why the 00025 // executable file might be covered by the GNU General Public License. 00026 00027 #ifndef TESTS_NORM_COMMON_HH 00028 # define TESTS_NORM_COMMON_HH 00029 00030 #include <cassert> 00031 00032 #include <mln/math/abs.hh> 00033 00034 00035 // FIXME: We should have a almost_equal function somewhere in Milena. 00036 static const float epsilon = 0.0001f; 00037 00038 00039 namespace test 00040 { 00041 00042 template <typename Norm, typename V> 00043 void 00044 check_norm(const Norm& norm, const V& vec1, const V& vec2) 00045 { 00046 assert(mln::math::abs(norm(vec1) - norm(vec2)) < epsilon); 00047 } 00048 00049 template <typename Distance, typename V, typename S> 00050 void 00051 check_distance(const Distance& dist, const V& vec1, const V& vec2, 00052 const S& ref_val) 00053 { 00054 float delta = mln::math::abs(static_cast<float>(dist(vec1, vec2)) 00055 - static_cast<float>(ref_val)); 00056 assert(delta < epsilon); 00057 } 00058 00059 } // end of namespace test. 00060 00061 00062 #endif // ! TESTS_NORM_COMMON_HH