35 #ifndef _BLAZE_MATH_TYPETRAITS_ISABSEXPR_H_
36 #define _BLAZE_MATH_TYPETRAITS_ISABSEXPR_H_
43 #include <boost/type_traits/is_base_of.hpp>
63 template<
typename T >
64 struct IsAbsExprHelper
67 enum { value = boost::is_base_of<AbsExpr,T>::value && !boost::is_base_of<T,AbsExpr>::value };
68 typedef typename SelectType<value,TrueType,FalseType>::Type Type;
87 template<
typename T >
93 enum { value = IsAbsExprHelper<T>::value };
94 typedef typename IsAbsExprHelper<T>::Type Type;
Header file for the AbsExpr base class.
Header file for the FalseType type/value trait base class.
Compile time check whether the given type is an absolute value expression template.This type trait class tests whether or not the given type Type is an absolute value expression template. In order to qualify as a valid absolute value expression template, the given type has to derive (publicly or privately) from the AbsExpr base class. In case the given type is a valid absolute value expression template, the value member enumeration is set to 1, the nested type definition Type is TrueType, and the class derives from TrueType. Otherwise value is set to 0, Type is FalseType, and the class derives from FalseType.
Definition: IsAbsExpr.h:88
Header file for the SelectType class template.
Header file for the TrueType type/value trait base class.