First checkin for OpenMesh 2.0

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
2009-02-06 13:37:46 +00:00
parent c3321ebdd9
commit 97f515985d
417 changed files with 76182 additions and 0 deletions
--- a/Tools/Utils/NumLimitsT.hh
+++ b/Tools/Utils/NumLimitsT.hh
@@ -0,0 +1,136 @@
+//=============================================================================
+//                                                                            
+//                               OpenMesh                                     
+//        Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen          
+//                           www.openmesh.org                                 
+//                                                                            
+//-----------------------------------------------------------------------------
+//                                                                            
+//                                License                                     
+//                                                                            
+//   This library is free software; you can redistribute it and/or modify it 
+//   under the terms of the GNU Lesser General Public License as published   
+//   by the Free Software Foundation, version 2.1.                           
+//                                                                             
+//   This library is distributed in the hope that it will be useful, but       
+//   WITHOUT ANY WARRANTY; without even the implied warranty of                
+//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         
+//   Lesser General Public License for more details.                           
+//                                                                            
+//   You should have received a copy of the GNU Lesser General Public          
+//   License along with this library; if not, write to the Free Software       
+//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 
+//                                                                            
+//-----------------------------------------------------------------------------
+//                                                                            
+//   $Revision: 4254 $
+//   $Date: 2009-01-12 14:44:00 +0100 (Mo, 12. Jan 2009) $
+//                                                                            
+//=============================================================================
+
+/** \file NumLimitsT.hh
+    Temporary solution until std::numeric_limits is standard.
+ */
+
+//=============================================================================
+//
+//  CLASS NumLimitsT
+//
+//=============================================================================
+
+#ifndef OPENMESH_UTILS_NUMLIMITS_HH
+#define OPENMESH_UTILS_NUMLIMITS_HH
+
+
+//== INCLUDES =================================================================
+
+#include "Config.hh"
+#include <limits.h>
+#include <float.h>
+
+
+//== NAMESPEACES ==============================================================
+
+namespace OpenMesh { // BEGIN_NS_OPENMESH
+namespace Utils { // BEGIN_NS_UTILS
+
+
+//== CLASS DEFINITION =========================================================
+
+
+/** \class NumLimitsT NumLimitsT.hh <OpenMesh/Utils/NumLimitsT.hh
+
+    This class provides the maximum and minimum values a certain
+    scalar type (\cint, \c float, or \double) can store. You can
+    use it like this:
+    \code
+    #include <OpenMesh/Utils/NumLimitsT.hh>
+
+    int   float_min   = OpenMesh::NumLimitsT<float>::min();
+    float double_max  = OpenMesh::NumLimitsT<double>::max();
+    \endcode
+    
+    \note This functionality should be provided by
+    std::numeric_limits.  This template does not exist on gcc <=
+    2.95.3. The class template NumLimitsT is just a workaround.
+**/
+template <typename Scalar>
+class NumLimitsT
+{
+public:
+  /// Return the smallest \em absolte value a scalar type can store.
+  static inline Scalar min() { return 0; }
+  /// Return the maximum \em absolte value a scalar type can store.
+  static inline Scalar max() { return 0; }
+
+  static inline bool   is_float()   { return false; }
+  static inline bool   is_integer() { return !NumLimitsT<Scalar>::is_float(); }
+  static inline bool   is_signed()  { return true; }
+};
+
+  // is_float
+
+template<> 
+inline bool NumLimitsT<float>::is_float() { return true; }
+
+template<> 
+inline bool NumLimitsT<double>::is_float() { return true; }
+
+template<> 
+inline bool NumLimitsT<long double>::is_float() { return true; }
+
+  // is_signed
+
+template<> 
+inline bool NumLimitsT<unsigned char>::is_signed() { return false; }
+
+template<> 
+inline bool NumLimitsT<unsigned short>::is_signed() { return false; }
+
+template<> 
+inline bool NumLimitsT<unsigned int>::is_signed() { return false; }
+
+template<> 
+inline bool NumLimitsT<unsigned long>::is_signed() { return false; }
+
+template<> 
+inline bool NumLimitsT<unsigned long long>::is_signed() { return false; }
+
+  // min/max
+template<> inline int  NumLimitsT<int>::min() { return INT_MIN; }
+template<> inline int  NumLimitsT<int>::max() { return INT_MAX; }
+
+template<> inline float NumLimitsT<float>::min() { return FLT_MIN; }
+template<> inline float NumLimitsT<float>::max() { return FLT_MAX; }
+
+template<> inline double NumLimitsT<double>::min() { return DBL_MIN; }
+template<> inline double NumLimitsT<double>::max() { return DBL_MAX; }
+
+
+//=============================================================================
+} // END_NS_UTILS
+} // END_NS_OPENMESH
+//=============================================================================
+#endif // OPENMESH_NUMLIMITS_HH defined
+//=============================================================================
+