const_pointer.pass.cpp [plain text]
#include <memory>
#include <type_traits>
template <class T>
struct Ptr {};
template <class T>
struct A
{
typedef T value_type;
typedef Ptr<T> pointer;
};
template <class T>
struct B
{
typedef T value_type;
};
template <class T>
struct CPtr {};
template <class T>
struct C
{
typedef T value_type;
typedef CPtr<T> pointer;
typedef CPtr<const T> const_pointer;
};
int main()
{
static_assert((std::is_same<std::allocator_traits<A<char> >::const_pointer, Ptr<const char> >::value), "");
static_assert((std::is_same<std::allocator_traits<B<char> >::const_pointer, const char*>::value), "");
static_assert((std::is_same<std::allocator_traits<C<char> >::const_pointer, CPtr<const char> >::value), "");
}