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routine/exact.hh
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development
2 // Laboratory (LRDE)
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4 // This file is part of Olena.
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20 // instantiate templates or use macros or inline functions from this
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26 
27 #ifndef MLN_CORE_ROUTINE_EXACT_HH
28 # define MLN_CORE_ROUTINE_EXACT_HH
29 
33 
34 
36 //
37 // Tech note: These macros have to be defined just here! Do not
38 // move them elsewhere.
39 //
40 #define mln_exact(T) typename mln::internal::exact_<T>::ret
41 #define mln_exact_(T) mln::internal::exact_<T>::ret
42 
43 
44 #include <mln/core/internal/exact.hh>
45 
46 
47 # if defined(__GNUC__) && __GNUC__ < 3
48 # include <mln/core/internal/exact_gcc_2_95.hh>
49 # else
50 
51 
52 
53 namespace mln
54 {
55 
56 
68 
69 
70  template <typename T>
71  mln_exact(T)* exact(T* ptr);
72 
73  template <typename T>
74  mln_exact(T)& exact(T& ref);
75 
77 
78 
79 # ifndef MLN_INCLUDE_ONLY
80 
81  // Exact.
82 
83  template <typename T>
84  inline
85  mln_exact(T)* exact(T* ptr)
86  {
87  return internal::exact_<T>::run(ptr);
88  }
89 
90  template <typename T>
91  inline
92  mln_exact(T)& exact(T& ref)
93  {
94  return *exact(&ref);
95  }
96 
97 # endif // ! MLN_INCLUDE_ONLY
98 
99 } // end of namespace mln
100 
101 
102 # endif // ! (defined(__GNUC__) && __GNUC__ < 3)
103 
104 
105 #endif // ! MLN_CORE_ROUTINE_EXACT_HH