IsVecMapExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_ISVECMAPEXPR_H_
36 #define _BLAZE_MATH_TYPETRAITS_ISVECMAPEXPR_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 IsVecMapExprHelper
63 {
64  private:
65  //**********************************************************************************************
66  static T* create();
67 
68  template< typename VT >
69  static TrueType test( const VecMapExpr<VT>* );
70 
71  template< typename VT >
72  static TrueType test( const volatile VecMapExpr<VT>* );
73 
74  static FalseType test( ... );
75  //**********************************************************************************************
76 
77  public:
78  //**********************************************************************************************
79  using Type = decltype( test( create() ) );
80  //**********************************************************************************************
81 };
83 //*************************************************************************************************
84 
85 
86 //*************************************************************************************************
98 template< typename T >
100  : public IsVecMapExprHelper<T>::Type
101 {};
102 //*************************************************************************************************
103 
104 
105 //*************************************************************************************************
110 template< typename T >
111 struct IsVecMapExpr<T&>
112  : public FalseType
113 {};
115 //*************************************************************************************************
116 
117 
118 //*************************************************************************************************
131 template< typename T >
133 //*************************************************************************************************
134 
135 } // namespace blaze
136 
137 #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 FalseType type/value trait base class.
Generic wrapper for a compile time constant integral value.The IntegralConstant class template repres...
Definition: IntegralConstant.h:71
Header file for the VecMapExpr base class.
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 IsVecMapExpr_v
Auxiliary variable template for the IsVecMapExpr type trait.The IsVecMapExpr_v variable template prov...
Definition: IsVecMapExpr.h:132
Compile time check whether the given type is a unary vector map expression template.This type trait class tests whether or not the given type Type is a unary vector map expression template. In order to qualify as a valid unary vector map expression template, the given type has to derive publicly from the VecMapExpr base class. In case the given type is a valid unary vector map expression template, the value member constant is set to true, the nested type definition Type is TrueType, and the class derives from TrueType. Otherwise value is set to false, Type is FalseType, and the class derives from FalseType.
Definition: IsVecMapExpr.h:99
Header file for the TrueType type/value trait base class.