HasMult.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_HASMULT_H_
36 #define _BLAZE_MATH_TYPETRAITS_HASMULT_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <utility>
46 #include <blaze/util/EnableIf.h>
47 #include <blaze/util/FalseType.h>
48 #include <blaze/util/TrueType.h>
50 
51 
52 namespace blaze {
53 
54 //=================================================================================================
55 //
56 // CLASS DEFINITION
57 //
58 //=================================================================================================
59 
60 //*************************************************************************************************
65 template< typename T1, typename T2, typename = void >
66 struct HasMultHelper
67  : public FalseType
68 {};
70 //*************************************************************************************************
71 
72 
73 //*************************************************************************************************
79 template< typename T1, typename T2 >
80 struct HasMultHelper< T1, T2, Void_t< decltype( std::declval<T1>() * std::declval<T2>() ) > >
81  : public TrueType
82 {};
84 //*************************************************************************************************
85 
86 
87 //*************************************************************************************************
106 template< typename T1, typename T2, typename = void >
107 struct HasMult
108  : public HasMultHelper<T1,T2>
109 {};
110 //*************************************************************************************************
111 
112 
113 //*************************************************************************************************
118 template< typename T1, typename T2 >
119 struct HasMult< T1, T2, EnableIf_t< IsVector_v<T1> && IsVector_v<T2> > >
121 {};
123 //*************************************************************************************************
124 
125 
126 //*************************************************************************************************
131 template< typename T1, typename T2 >
132 struct HasMult< T1, T2, EnableIf_t< IsMatrix_v<T1> && IsVector_v<T2> > >
133  : public HasMult< typename T1::ElementType, typename T2::ElementType >
134 {};
136 //*************************************************************************************************
137 
138 
139 //*************************************************************************************************
144 template< typename T1, typename T2 >
145 struct HasMult< T1, T2, EnableIf_t< IsVector_v<T1> && IsMatrix_v<T2> > >
146  : public HasMult< typename T1::ElementType, typename T2::ElementType >
147 {};
149 //*************************************************************************************************
150 
151 
152 //*************************************************************************************************
157 template< typename T1, typename T2 >
158 struct HasMult< T1, T2, EnableIf_t< IsMatrix_v<T1> && IsMatrix_v<T2> > >
159  : public HasMult< typename T1::ElementType, typename T2::ElementType >
160 {};
162 //*************************************************************************************************
163 
164 
165 //*************************************************************************************************
178 template< typename T1, typename T2 >
180 //*************************************************************************************************
181 
182 } // namespace blaze
183 
184 #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 Void type trait.
constexpr bool IsMatrix_v
Auxiliary variable template for the IsMatrix type trait.The IsMatrix_v variable template provides a c...
Definition: IsMatrix.h:139
Header file for the FalseType type/value trait base class.
void Void_t
Compile time type check.This type trait maps an arbitrary sequence of types to the type void...
Definition: Void.h:64
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
STL namespace.
Header file for the IsMatrix type trait.
typename EnableIf< Condition, T >::Type EnableIf_t
Auxiliary type for the EnableIf class template.The EnableIf_t alias declaration provides a convenient...
Definition: EnableIf.h:138
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
constexpr bool HasMult_v
Auxiliary variable template for the HasMult type trait.The HasMult_v variable template provides a con...
Definition: HasMult.h:179
constexpr bool IsVector_v
Auxiliary variable template for the IsVector type trait.The IsVector_v variable template provides a c...
Definition: IsVector.h:140
Header file for the IsVector type trait.
Header file for the EnableIf class template.
Availability of a multiplication operator for the given data types.This type trait provides the infor...
Definition: HasMult.h:107
Header file for the TrueType type/value trait base class.