HasInvSqrt.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TYPETRAITS_HASINVSQRT_H_
36 #define _BLAZE_MATH_TYPETRAITS_HASINVSQRT_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 HasInvSqrtHelper
67  : public FalseType
68 {};
70 //*************************************************************************************************
71 
72 
73 //*************************************************************************************************
79 template< typename T >
80 struct HasInvSqrtHelper< T, Void_t< decltype( invsqrt( std::declval<T>() ) ) > >
81  : public TrueType
82 {};
84 //*************************************************************************************************
85 
86 
87 //*************************************************************************************************
108 template< typename T, typename = void >
110  : public HasInvSqrtHelper<T>
111 {};
112 //*************************************************************************************************
113 
114 
115 //*************************************************************************************************
120 template< typename T >
121 struct HasInvSqrt< T, EnableIf_t< IsVector_v<T> > >
122  : public HasInvSqrt< typename T::ElementType >
123 {};
125 //*************************************************************************************************
126 
127 
128 //*************************************************************************************************
133 template< typename T >
134 struct HasInvSqrt< T, EnableIf_t< IsMatrix_v<T> > >
135  : public HasInvSqrt< typename T::ElementType >
136 {};
138 //*************************************************************************************************
139 
140 
141 //*************************************************************************************************
154 template< typename T >
156 //*************************************************************************************************
157 
158 } // namespace blaze
159 
160 #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.
Availability of the invsqrt() operation for the given data types.This type trait provides the informa...
Definition: HasInvSqrt.h:109
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 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.
constexpr bool HasInvSqrt_v
Auxiliary variable template for the HasInvSqrt type trait.The HasInvSqrt_v variable template provides...
Definition: HasInvSqrt.h:155
decltype(auto) invsqrt(const DenseMatrix< MT, SO > &dm)
Computes the inverse square root of each single element of the dense matrix dm.
Definition: DMatMapExpr.h:1485
Header file for the TrueType type/value trait base class.