glo::IsBaseClassOf< Base, Derived > Class Template Reference

Checks whether template parameters are classes and whether the class of the second template parameter is of the type of the class of the first template parameter or is derived from it. More...

#include <GloTOndemand.h>

Classes
struct	IsClass
struct	No

Static Public Attributes
static const bool	value

Private Types
typedef char	Yes

Static Private Member Functions
static No	Test (...)
static Yes	Test (Base *)

Detailed Description

template<typename Base, typename Derived>
class glo::IsBaseClassOf< Base, Derived >

Checks whether template parameters are classes and whether the class of the second template parameter is of the type of the class of the first template parameter or is derived from it.

Member Typedef Documentation

Yes

template<typename Base, typename Derived>

typedef char glo::IsBaseClassOf< Base, Derived >::Yes

private

Size: 1 byte

Member Function Documentation

Test() [1/2]

template<typename Base, typename Derived>

static No glo::IsBaseClassOf< Base, Derived >::Test ( ... )

staticprivate

This overload is chosen if the previous one does not fit (SFINAE).

Test() [2/2]

template<typename Base, typename Derived>

static Yes glo::IsBaseClassOf< Base, Derived >::Test ( Base * )

staticprivate

Function to check the conversion from 'Derived*' to 'Base*'.
This overload is selected if 'Derived*' is convertible to 'Base*'.

Member Data Documentation

value

template<typename Base, typename Derived>

const bool glo::IsBaseClassOf< Base, Derived >::value

static

Initial value:

= IsClass<Base>::value
                                && IsClass<Derived>::value
                                && sizeof( Test( static_cast<Derived*>( 0 ) ) ) == sizeof(Yes)

If 'Test(Derived*)' selects the 'Yes' version, then Derived is derived from Base.

Referenced by glo::TOndemand< T >::TOndemand(), glo::TOndemand< T >::operator!=(), glo::TOndemand< T >::operator=(), and glo::TOndemand< T >::operator==().

---

The documentation for this class was generated from the following file:

• GloTOndemand.h