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 
44 #include <blaze/util/FalseType.h>
45 #include <blaze/util/TrueType.h>
46 
47 
48 namespace blaze {
49 
50 //=================================================================================================
51 //
52 // CLASS DEFINITION
53 //
54 //=================================================================================================
55 
56 //*************************************************************************************************
61 template< typename T >
62 struct IsViewHelper
63 {
64  private:
65  //**********************************************************************************************
66  static T* create();
67 
68  template< typename U >
69  static TrueType test( const View<U>* );
70 
71  template< typename U >
72  static TrueType test( const volatile View<U>* );
73 
74  static FalseType test( ... );
75  //**********************************************************************************************
76 
77  public:
78  //**********************************************************************************************
79  using Type = decltype( test( create() ) );
80  //**********************************************************************************************
81 };
83 //*************************************************************************************************
84 
85 
86 //*************************************************************************************************
117 template< typename T >
118 struct IsView
119  : public IsViewHelper<T>::Type
120 {};
121 //*************************************************************************************************
122 
123 
124 //*************************************************************************************************
129 template< typename T >
130 struct IsView<T&>
131  : public FalseType
132 {};
134 //*************************************************************************************************
135 
136 
137 //*************************************************************************************************
150 template< typename T >
151 constexpr bool IsView_v = IsView<T>::value;
152 //*************************************************************************************************
153 
154 } // namespace blaze
155 
156 #endif
BoolConstant< false > FalseType
Type/value traits base class.The FalseType class is used as base class for type traits and value trai...
Definition: FalseType.h:61
Header file for the View base class.
Header file for the FalseType type/value trait base class.
Generic wrapper for a compile time constant integral value.The IntegralConstant class template repres...
Definition: IntegralConstant.h:71
Compile time check for views.This type trait tests whether or not the given template parameter is a v...
Definition: IsView.h:118
BoolConstant< true > TrueType
Type traits base class.The TrueType class is used as base class for type traits and value traits that...
Definition: TrueType.h:61
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
constexpr bool IsView_v
Auxiliary variable template for the IsView type trait.The IsView_v variable template provides a conve...
Definition: IsView.h:151
Header file for the TrueType type/value trait base class.