HasAtan.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_HASATAN_H_
36 #define _BLAZE_MATH_TYPETRAITS_HASATAN_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 T, typename = void >
66 struct HasAtanHelper
67  : public FalseType
68 {};
70 //*************************************************************************************************
71 
72 
73 //*************************************************************************************************
78 template< typename T >
79 struct HasAtanHelper< T, Void_t< decltype( atan( std::declval<T>() ) ) > >
80  : public TrueType
81 {};
83 //*************************************************************************************************
84 
85 
86 //*************************************************************************************************
107 template< typename T, typename = void >
108 struct HasAtan
109  : public HasAtanHelper<T>
110 {};
111 //*************************************************************************************************
112 
113 
114 //*************************************************************************************************
119 template< typename T >
120 struct HasAtan< T, EnableIf_t< IsVector_v<T> > >
121  : public HasAtan< typename T::ElementType >
122 {};
124 //*************************************************************************************************
125 
126 
127 //*************************************************************************************************
132 template< typename T >
133 struct HasAtan< T, EnableIf_t< IsMatrix_v<T> > >
134  : public HasAtan< typename T::ElementType >
135 {};
137 //*************************************************************************************************
138 
139 
140 //*************************************************************************************************
153 template< typename T >
154 constexpr bool HasAtan_v = HasAtan<T>::value;
155 //*************************************************************************************************
156 
157 } // namespace blaze
158 
159 #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
decltype(auto) atan(const DenseMatrix< MT, SO > &dm)
Computes the inverse tangent for each single element of the dense matrix dm.
Definition: DMatMapExpr.h:2096
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 atan() operation for the given data types.This type trait provides the informatio...
Definition: HasAtan.h:108
constexpr bool HasAtan_v
Auxiliary variable template for the HasAtan type trait.The HasAtan_v variable template provides a con...
Definition: HasAtan.h:154
Header file for the TrueType type/value trait base class.