has_class_versions_type< T >

Usable for enable_if<>: Compile time check whether a struct class_versions<> is available. More...

Classes
struct	no
	Return value if interface_info<> does not exist. More...
struct	yes
	Return value if interface_info<> exists. More...

Static Public Attributes
static const bool	value = sizeof(exists<T>(nullptr)) == sizeof(yes)
	Evaluates to either size of yes or no, depending on existence of class_versions<>

Static Private Member Functions
template<typename C >
static yes	exists (typename C::template class_versions< static_cast< C * >(nullptr)> *=nullptr)
	Overload taken if the class_versions<> exists. More...
template<typename C >
static no	exists (...)
	Overload taken if the class_versions<> does not exist. More...

Detailed Description

template<typename T>
class adtf::ucom::ant::detail::has_class_versions_type< T >

Usable for enable_if<>: Compile time check whether a struct class_versions<> is available.

Template Parameters

T	The type to perform the check on.
U	Inner type of the nested template to check for existence.

Definition at line 61 of file class_info_detail.h.

Member Function Documentation

exists() [1/2]

static no exists (   ... )

staticprivate

Overload taken if the class_versions<> does not exist.

Template Parameters

C	Type to check existence of class_dependencies<>

Returns

no

exists() [2/2]

static yes exists ( typename C::template class_versions< static_cast< C * >(nullptr)> *  = nullptr )

staticprivate

Overload taken if the class_versions<> exists.

Template Parameters

C	Type to check existence of class_dependencies<>

Returns

yes