IsVecExpandExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_ISVECEXPANDEXPR_H_
36 #define _BLAZE_MATH_TYPETRAITS_ISVECEXPANDEXPR_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 IsVecExpandExprHelper
63 {
64  private:
65  //**********************************************************************************************
66  static T* create();
67 
68  template< typename U, size_t... Es >
69  static TrueType test( const VecExpandExpr<U,Es...>* );
70 
71  template< typename U, size_t... Es >
72  static TrueType test( const volatile VecExpandExpr<U,Es...>* );
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 IsVecExpandExprHelper<T>::Type
101 {};
102 //*************************************************************************************************
103 
104 
105 //*************************************************************************************************
110 template< typename T >
111 struct IsVecExpandExpr<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
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
constexpr bool IsVecExpandExpr_v
Auxiliary variable template for the IsVecExpandExpr type trait.The IsVecExpandExpr_v variable templat...
Definition: IsVecExpandExpr.h:132
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Header file for the VecExpandExpr base class.
Compile time check whether the given type is a vector expansion expression template.This type trait class tests whether or not the given type Type is a vector expansion expression template. In order to qualify as a valid vector expansion expression template, the given type has to derive publicly from the VecExpandExpr base class. In case the given type is a valid expansion 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: IsVecExpandExpr.h:99
Header file for the TrueType type/value trait base class.