Boost C++ Libraries

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is_member_object_pointer

template <class T>
struct is_member_object_pointer : public true_type-or-false_type {};

Inherits: If T is a (possibly cv-qualified) pointer to a member object (a data member) then inherits from true_type, otherwise inherits from false_type.

C++ Standard Reference: 3.9.2 and 8.3.3.

Header: #include <boost/type_traits/is_member_object_pointer.hpp> or #include <boost/type_traits.hpp>

Examples:

is_member_object_pointer<int (MyClass::*)> inherits from true_type.

is_member_object_pointer<double (MyClass::*)>::type is the type true_type.

is_member_object_pointer<const int (MyClass::*)>::value is an integral constant expression that evaluates to true.

is_member_object_pointer<int (MyClass::*)(void)>::value is an integral constant expression that evaluates to false: the argument in this case is a pointer to a member function and not a member object, see is_member_function_pointer and is_member_pointer

is_member_object_pointer<T>::value_type is the type bool.


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