IsMultExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_ISMULTEXPR_H_
36 #define _BLAZE_MATH_TYPETRAITS_ISMULTEXPR_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 IsMultExprHelper
63 {
64  private:
65  //**********************************************************************************************
66  static T* create();
67 
68  template< typename U >
69  static TrueType test( const MultExpr<U>* );
70 
71  template< typename U >
72  static TrueType test( const volatile MultExpr<U>* );
73 
74  static FalseType test( ... );
75  //**********************************************************************************************
76 
77  public:
78  //**********************************************************************************************
79  using Type = decltype( test( create() ) );
80  //**********************************************************************************************
81 };
83 //*************************************************************************************************
84 
85 
86 //*************************************************************************************************
99 template< typename T >
101  : public IsMultExprHelper<T>::Type
102 {};
103 //*************************************************************************************************
104 
105 
106 //*************************************************************************************************
111 template< typename T >
112 struct IsMultExpr<T&>
113  : public FalseType
114 {};
116 //*************************************************************************************************
117 
118 
119 //*************************************************************************************************
132 template< typename T >
134 //*************************************************************************************************
135 
136 } // namespace blaze
137 
138 #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 multiplication expression template.This type trait class tests whether or not the given type Type is a multiplication expression template (i.e. an expression representing an element-wise vector multiplication, a matrix/vector multiplication, a vector/matrix multiplication, or a matrix multiplication). In order to qualify as a valid multiplication expression template, the given type has to derive publicly from the MultExpr base class. In case the given type is a valid multiplication 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: IsMultExpr.h:100
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
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Header file for the MultExpr base class.
constexpr bool IsMultExpr_v
Auxiliary variable template for the IsMultExpr type trait.The IsMultExpr_v variable template provides...
Definition: IsMultExpr.h:133
Header file for the TrueType type/value trait base class.