IsBaseOf.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_UTIL_TYPETRAITS_ISBASEOF_H_
36 #define _BLAZE_UTIL_TYPETRAITS_ISBASEOF_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <boost/type_traits/is_base_of.hpp>
44 #include <blaze/util/FalseType.h>
45 #include <blaze/util/SelectType.h>
46 #include <blaze/util/TrueType.h>
48 
49 
50 namespace blaze {
51 
52 //=================================================================================================
53 //
54 // CLASS DEFINITION
55 //
56 //=================================================================================================
57 
58 //*************************************************************************************************
63 template< typename Base, typename Derived >
64 struct IsBaseOfHelper
65 {
66  //**********************************************************************************************
67  enum { value = boost::is_base_of<typename RemoveCV<Base>::Type,
68  typename RemoveCV<Derived>::Type>::value };
69  typedef typename SelectType<value,TrueType,FalseType>::Type Type;
70  //**********************************************************************************************
71 };
73 //*************************************************************************************************
74 
75 
76 //*************************************************************************************************
99 template< typename Base, typename Derived >
100 class IsBaseOf : public IsBaseOfHelper<Base,Derived>::Type
101 {
102  public:
103  //**********************************************************************************************
105  enum { value = IsBaseOfHelper<Base,Derived>::value };
106  typedef typename IsBaseOfHelper<Base,Derived>::Type Type;
108  //**********************************************************************************************
109 };
110 //*************************************************************************************************
111 
112 } // namespace blaze
113 
114 #endif
Header file for the FalseType type/value trait base class.
Header file for the RemoveCV type trait.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
Header file for the SelectType class template.
Header file for the TrueType type/value trait base class.
Compile time analysis of an inheritance relationship.This type trait tests for an inheritance relatio...
Definition: IsBaseOf.h:100