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Teuchos_PromotionTraits.hpp
1// @HEADER
2// ***********************************************************************
3//
4// Teuchos: Common Tools Package
5// Copyright (2004) Sandia Corporation
6//
7// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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40// @HEADER
41
42#ifndef _TEUCHOS_PROMOTION_TRAITS_HPP_
43#define _TEUCHOS_PROMOTION_TRAITS_HPP_
44
46
47namespace Teuchos {
48
49template <class A, class B>
50class PromotionTraits
51{
52public:
53};
54
55//Specialization
56template <class T> class PromotionTraits<T,T> {
57public:
58 typedef T promote;
59};
60
61#define PT_SPEC(type1,type2,type3) \
62template <> class PromotionTraits< type1 , type2 > { \
63public: \
64 typedef type3 promote; \
65}; \
66template <> class PromotionTraits< type2 , type1 > { \
67public: \
68 typedef type3 promote; \
69};
70
71#ifdef HAVE_TEUCHOS_COMPLEX
72PT_SPEC(double,std::complex<float>,std::complex<double>)
73PT_SPEC(float,std::complex<double>,std::complex<double>)
74PT_SPEC(float,std::complex<float>,std::complex<float>)
75PT_SPEC(double,std::complex<double>,std::complex<double>)
76#endif // HAVE_TEUCHOS_COMPLEX
77PT_SPEC(double,float,double)
78PT_SPEC(double,long,double)
79PT_SPEC(double,int,double)
80PT_SPEC(float,long,float)
81PT_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.
The Teuchos namespace contains all of the classes, structs and enums used by Teuchos,...