xref: /external/libcxx/test/std/utilities/allocator.adaptor/types.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <memory>

// template <class OuterAlloc, class... InnerAllocs>
// class scoped_allocator_adaptor
//     : public OuterAlloc
// {
// public:
//     typedef OuterAlloc outer_allocator_type;
//     typedef typename OuterTraits::size_type size_type;
//     typedef typename OuterTraits::difference_type difference_type;
//     typedef typename OuterTraits::pointer pointer;
//     typedef typename OuterTraits::const_pointer const_pointer;
//     typedef typename OuterTraits::void_pointer void_pointer;
//     typedef typename OuterTraits::const_void_pointer const_void_pointer;
// };

#include <scoped_allocator>
#include <type_traits>

#include "allocators.h"

int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES

    static_assert((std::is_base_of<
        A1<int>,
        std::scoped_allocator_adaptor<A1<int>>
        >::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A1<int>>::outer_allocator_type,
        A1<int>>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A1<int>>::size_type,
        std::make_unsigned<std::ptrdiff_t>::type>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A1<int>>::difference_type,
        std::ptrdiff_t>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A1<int>>::pointer,
        int*>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A1<int>>::const_pointer,
        const int*>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A1<int>>::void_pointer,
        void*>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A1<int>>::const_void_pointer,
        const void*>::value), "");

    static_assert((std::is_base_of<
        A2<int>,
        std::scoped_allocator_adaptor<A2<int>, A1<int>>
        >::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A2<int>, A1<int>>::outer_allocator_type,
        A2<int>>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A2<int>, A1<int>>::size_type,
        unsigned>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A2<int>, A1<int>>::difference_type,
        int>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A2<int>, A1<int>>::pointer,
        int*>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A2<int>, A1<int>>::const_pointer,
        const int*>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A2<int>, A1<int>>::void_pointer,
        void*>::value), "");

    static_assert((std::is_same<
        std::scoped_allocator_adaptor<A2<int>, A1<int>>::const_void_pointer,
        const void*>::value), "");

#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}