Blaze  3.6
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>
49 
50 
51 namespace blaze {
52 
53 //=================================================================================================
54 //
55 // CLASS DEFINITION
56 //
57 //=================================================================================================
58 
59 //*************************************************************************************************
64 template< typename T1, typename T2, typename = void >
65 struct HasMultHelper
66  : public FalseType
67 {};
69 //*************************************************************************************************
70 
71 
72 //*************************************************************************************************
78 template< typename T1, typename T2 >
79 struct HasMultHelper< T1, T2, Void_t< decltype( std::declval<T1>() * std::declval<T2>() ) > >
80  : public TrueType
81 {};
83 //*************************************************************************************************
84 
85 
86 //*************************************************************************************************
105 template< typename T1, typename T2, typename = void >
106 struct HasMult
107  : public HasMultHelper<T1,T2>
108 {};
109 //*************************************************************************************************
110 
111 
112 //*************************************************************************************************
117 template< typename T1, typename T2 >
118 struct HasMult< T1, T2, EnableIf_t< IsVector_v<T1> && IsVector_v<T2> > >
120 {};
122 //*************************************************************************************************
123 
124 
125 //*************************************************************************************************
130 template< typename T1, typename T2 >
131 struct HasMult< T1, T2, EnableIf_t< IsMatrix_v<T1> && IsVector_v<T2> > >
132  : public HasMult< typename T1::ElementType, typename T2::ElementType >
133 {};
135 //*************************************************************************************************
136 
137 
138 //*************************************************************************************************
143 template< typename T1, typename T2 >
144 struct HasMult< T1, T2, EnableIf_t< IsVector_v<T1> && IsMatrix_v<T2> > >
145  : public HasMult< typename T1::ElementType, typename T2::ElementType >
146 {};
148 //*************************************************************************************************
149 
150 
151 //*************************************************************************************************
156 template< typename T1, typename T2 >
157 struct HasMult< T1, T2, EnableIf_t< IsMatrix_v<T1> && IsMatrix_v<T2> > >
158  : public HasMult< typename T1::ElementType, typename T2::ElementType >
159 {};
161 //*************************************************************************************************
162 
163 
164 //*************************************************************************************************
177 template< typename T1, typename T2 >
179 //*************************************************************************************************
180 
181 } // namespace blaze
182 
183 #endif
BoolConstant< false > FalseType
Type/value traits base class.The FalseType class is used as base class for type traits and value trai...
Definition: IntegralConstant.h:121
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:138
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: IntegralConstant.h:132
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
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:106
constexpr bool IsVector_v
Auxiliary variable template for the IsVector type trait.The IsVector_v variable template provides a c...
Definition: IsVector.h:139
Header file for the IntegralConstant class template.
constexpr bool HasMult_v
Auxiliary variable template for the HasMult type trait.The HasMult_v variable template provides a con...
Definition: HasMult.h:178