HasHypot.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_HASHYPOT_H_
36 #define _BLAZE_MATH_TYPETRAITS_HASHYPOT_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 HasHypotHelper
67  : public FalseType
68 {};
70 //*************************************************************************************************
71 
72 
73 //*************************************************************************************************
78 template< typename T1, typename T2 >
79 struct HasHypotHelper< T1, T2, Void_t< decltype( hypot( std::declval<T1>(), std::declval<T2>() ) ) > >
80  : public TrueType
81 {};
83 //*************************************************************************************************
84 
85 
86 //*************************************************************************************************
105 template< typename T1, typename T2, typename = void >
106 struct HasHypot
107  : public HasHypotHelper<T1,T2>
108 {};
109 //*************************************************************************************************
110 
111 
112 //*************************************************************************************************
117 template< typename T1, typename T2 >
118 struct HasHypot< T1, T2, EnableIf_t< IsVector_v<T1> && IsVector_v<T2> > >
120 {};
122 //*************************************************************************************************
123 
124 
125 //*************************************************************************************************
130 template< typename T1, typename T2 >
131 struct HasHypot< T1, T2, EnableIf_t< IsMatrix_v<T1> && IsMatrix_v<T2> > >
132  : public HasHypot< typename T1::ElementType, typename T2::ElementType >
133 {};
135 //*************************************************************************************************
136 
137 
138 //*************************************************************************************************
151 template< typename T1, typename T2 >
153 //*************************************************************************************************
154 
155 } // namespace blaze
156 
157 #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.
decltype(auto) hypot(const DenseMatrix< MT1, SO1 > &lhs, const DenseMatrix< MT2, SO2 > &rhs)
Computes the componentwise hypotenous for the dense matrices lhs and rhs.
Definition: DMatDMatMapExpr.h:1211
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
constexpr bool HasHypot_v
Auxiliary variable template for the HasHypot type trait.The HasHypot_v variable template provides a c...
Definition: HasHypot.h:152
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
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 the hypot() operation for the given data types.This type trait provides the informati...
Definition: HasHypot.h:106
Header file for the TrueType type/value trait base class.