EvalExprTrait.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_TRAITS_EVALEXPRTRAIT_H_
36 #define _BLAZE_MATH_TRAITS_EVALEXPRTRAIT_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <utility>
46 #include <blaze/util/InvalidType.h>
47 #include <blaze/util/mpl/If.h>
48 #include <blaze/util/mpl/Or.h>
50 
51 
52 namespace blaze {
53 
54 //=================================================================================================
55 //
56 // CLASS DEFINITION
57 //
58 //=================================================================================================
59 
60 //*************************************************************************************************
70 template< typename T > // Type of the evaluation operand
72 {
73  private:
74  //**struct Failure******************************************************************************
76  struct Failure { using Type = INVALID_TYPE; };
78  //**********************************************************************************************
79 
80  //**struct Result*******************************************************************************
82  struct Result { using Type = decltype( eval( std::declval<T>() ) ); };
84  //**********************************************************************************************
85 
86  public:
87  //**********************************************************************************************
90  , Result
91  , Failure
92  >::Type;
94  //**********************************************************************************************
95 };
96 //*************************************************************************************************
97 
98 
99 //*************************************************************************************************
112 template< typename T > // Type of the evaluation operand
114 //*************************************************************************************************
115 
116 } // namespace blaze
117 
118 #endif
typename EvalExprTrait< T >::Type EvalExprTrait_
Auxiliary alias declaration for the EvalExprTrait class template.The EvalExprTrait_ alias declaration...
Definition: EvalExprTrait.h:113
Compile time check for matrix types.This type trait tests whether or not the given template parameter...
Definition: IsMatrix.h:103
Header file for the IsMatrix type trait.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
Header file for the If class template.
Header file for the Or class template.
decltype(auto) eval(const DenseMatrix< MT, SO > &dm)
Forces the evaluation of the given dense matrix expression dm.
Definition: DMatEvalExpr.h:797
Header file for the IsVector type trait.
Utility type for generic codes.
typename If< T1, T2, T3 >::Type If_
Auxiliary alias declaration for the If class template.The If_ alias declaration provides a convenient...
Definition: If.h:154
Header file for the RemoveReference type trait.
Evaluation of the return type of an evaluation expression.Via this type trait it is possible to evalu...
Definition: EvalExprTrait.h:71