nux-1.16.0
Constants.cpp
00001 /*
00002  * Copyright 2010 Inalogic® Inc.
00003  *
00004  * This program is free software: you can redistribute it and/or modify it
00005  * under the terms of the GNU Lesser General Public License, as
00006  * published by the  Free Software Foundation; either version 2.1 or 3.0
00007  * of the License.
00008  *
00009  * This program is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranties of
00011  * MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
00012  * PURPOSE.  See the applicable version of the GNU Lesser General Public
00013  * License for more details.
00014  *
00015  * You should have received a copy of both the GNU Lesser General Public
00016  * License along with this program. If not, see <http://www.gnu.org/licenses/>
00017  *
00018  * Authored by: Jay Taoko <jaytaoko@inalogic.com>
00019  *
00020  */
00021 
00022 
00023 #include "../NuxCore.h"
00024 #include "Constants.h"
00025 
00026 namespace nux
00027 {
00028   const float Const::pi       = 3.1415926535f;
00029   const float Const::Pi       = 3.1415926535f;
00030   const float Const::e        = 2.7182817f;
00031   const float Const::sqrt2    = 1.414214f;
00032   const float Const::sqrt3    = 1.732051f;
00033   const float Const::golden   = 1.618034f;
00034 
00035   const double Const::EpsilonMilli  =   0.001;
00036   const double Const::EpsilonMicro  =   0.000001;
00037   const double Const::EpsilonNano   =   0.000000001;
00038   const double Const::EpsilonPico   =   0.000000000001;
00039   const double Const::EpsilonFemto  =   0.000000000000001;
00040 
00041 #if defined(NUX_OS_WINDOWS)
00042   const float Const::flt_epsilon    = FLT_EPSILON;
00043   const float Const::dbl_epsilon    = DBL_EPSILON;
00044 #elif defined(NUX_OS_LINUX)
00045   const float Const::flt_epsilon    = __FLT_EPSILON__;
00046   const float Const::dbl_epsilon    = __DBL_EPSILON__;
00047 #elif defined(NUX_OS_MACOSX)
00048   const float Const::dbl_epsilon    = _FLT_EPSILON_;
00049   const float Const::dbl_epsilon    = _DBL_EPSILON_;
00050 #else
00051   #error Undefined OS.
00052 #endif
00053 
00054 }
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