IsMatEvalExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_ISMATEVALEXPR_H_
36 #define _BLAZE_MATH_TYPETRAITS_ISMATEVALEXPR_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 IsMatEvalExprHelper
63 {
64  private:
65  //**********************************************************************************************
66  static T* create();
67 
68  template< typename MT >
69  static TrueType test( const MatEvalExpr<MT>* );
70 
71  template< typename MT >
72  static TrueType test( const volatile MatEvalExpr<MT>* );
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 IsMatEvalExprHelper<T>::Type
101 {};
102 //*************************************************************************************************
103 
104 
105 //*************************************************************************************************
110 template< typename T >
111 struct IsMatEvalExpr<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
Compile time check whether the given type is a matrix evaluation expression template.This type trait class tests whether or not the given type Type is a matrix evaluation expression template. In order to qualify as a valid matrix evaluation expression template, the given type has to derive publicly from the MatEvalExpr base class. In case the given type is a valid matrix evaluation 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: IsMatEvalExpr.h:99
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
constexpr bool IsMatEvalExpr_v
Auxiliary variable template for the IsMatEvalExpr type trait.The IsMatEvalExpr_v variable template pr...
Definition: IsMatEvalExpr.h:132
Header file for the MatEvalExpr 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
Header file for the TrueType type/value trait base class.