epsilon.h

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00001 /* -*- C++ -*- ------------------------------------------------------------
00002  
00003 Copyright (c) 2007 Jesse Anders and Demian Nave http://cmldev.net/
00004 
00005 The Configurable Math Library (CML) is distributed under the terms of the
00006 Boost Software License, v1.0 (see cml/LICENSE for details).
00007 
00008  *-----------------------------------------------------------------------*/
00013 #ifndef epsilon_h
00014 #define epsilon_h
00015 
00016 namespace cml {
00017 
00018 /* @todo: epsilon and tolerance handling.
00019  *
00020  * @note This is a placeholder for a more sophisticated epsilon/tolerance
00021  * system.
00022  */
00023 
00024 template < typename Real >
00025 struct epsilon
00026 {
00027     typedef Real value_type;
00028     
00029 private:
00030 
00032     typedef value_type T;
00033     
00034 public:
00035 
00036     static T placeholder() {
00037         /* Completely arbitrary placeholder value: */
00038         return T(0.0001);
00039     }
00040 };
00041 
00042 } // namespace cml
00043 
00044 #endif