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Teuchos_PromotionTraits.hpp
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41 
42 #ifndef _TEUCHOS_PROMOTION_TRAITS_HPP_
43 #define _TEUCHOS_PROMOTION_TRAITS_HPP_
44 
45 #include "Teuchos_ConfigDefs.hpp"
46 
47 namespace Teuchos {
48 
49 template <class A, class B>
51 {
52 public:
53 };
54 
55 //Specialization
56 template <class T> class PromotionTraits<T,T> {
57 public:
58  typedef T promote;
59 };
60 
61 #define PT_SPEC(type1,type2,type3) \
62 template <> class PromotionTraits< type1 , type2 > { \
63 public: \
64  typedef type3 promote; \
65 }; \
66 template <> class PromotionTraits< type2 , type1 > { \
67 public: \
68  typedef type3 promote; \
69 };
70 
71 #ifdef HAVE_TEUCHOS_COMPLEX
72 PT_SPEC(double,std::complex<float>,std::complex<double>)
73 PT_SPEC(float,std::complex<double>,std::complex<double>)
74 PT_SPEC(float,std::complex<float>,std::complex<float>)
75 PT_SPEC(double,std::complex<double>,std::complex<double>)
76 #endif // HAVE_TEUCHOS_COMPLEX
77 PT_SPEC(double,float,double)
78 PT_SPEC(double,long,double)
79 PT_SPEC(double,int,double)
80 PT_SPEC(float,long,float)
81 PT_SPEC(float,int,float)
82 
83 // ToDo: Add specializations for extended precision types!
84 
85 #undef PT_SPEC
86 
87 } // Teuchos namespace
88 
89 #endif // _TEUCHOS_PROMOTION_TRAITS_HPP_
Teuchos header file which uses auto-configuration information to include necessary C++ headers...
#define PT_SPEC(type1, type2, type3)