IsView.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_ISVIEW_H_
36 #define _BLAZE_MATH_TYPETRAITS_ISVIEW_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <boost/type_traits/is_base_of.hpp>
45 #include <blaze/util/FalseType.h>
46 #include <blaze/util/SelectType.h>
47 #include <blaze/util/TrueType.h>
49 
50 
51 namespace blaze {
52 
53 //=================================================================================================
54 //
55 // CLASS DEFINITION
56 //
57 //=================================================================================================
58 
59 //*************************************************************************************************
64 template< typename T >
65 struct IsViewHelper
66 {
67  private:
68  //**********************************************************************************************
69  typedef typename RemoveCV<T>::Type T2;
70  //**********************************************************************************************
71 
72  public:
73  //**********************************************************************************************
74  enum { value = boost::is_base_of<View,T2>::value && !boost::is_base_of<T2,View>::value };
75  typedef typename SelectType<value,TrueType,FalseType>::Type Type;
76  //**********************************************************************************************
77 };
79 //*************************************************************************************************
80 
81 
82 //*************************************************************************************************
110 template< typename T >
111 struct IsView : public IsViewHelper<T>::Type
112 {
113  public:
114  //**********************************************************************************************
116  enum { value = IsViewHelper<T>::value };
117  typedef typename IsViewHelper<T>::Type Type;
119  //**********************************************************************************************
120 };
121 //*************************************************************************************************
122 
123 } // namespace blaze
124 
125 #endif
Header file for the View base class.
Header file for the FalseType type/value trait base class.
Header file for the RemoveCV type trait.
Compile time check for views.This type trait tests whether or not the given template parameter is a v...
Definition: IsView.h:111
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.