| 1 | /* |
|---|---|
| 2 | Copyright 2020 Glen Joseph Fernandes |
| 3 | (glenjofe@gmail.com) |
| 4 | |
| 5 | Distributed under the Boost Software License, Version 1.0. |
| 6 | (http://www.boost.org/LICENSE_1_0.txt) |
| 7 | */ |
| 8 | #include <boost/core/allocator_access.hpp> |
| 9 | #include <boost/core/lightweight_test_trait.hpp> |
| 10 | #include <boost/type_traits/is_same.hpp> |
| 11 | #if !defined(BOOST_NO_CXX11_ALLOCATOR) |
| 12 | #include <boost/type_traits/make_unsigned.hpp> |
| 13 | #endif |
| 14 | |
| 15 | template<class T> |
| 16 | struct A1 { |
| 17 | typedef T value_type; |
| 18 | typedef int size_type; |
| 19 | }; |
| 20 | |
| 21 | #if !defined(BOOST_NO_CXX11_ALLOCATOR) |
| 22 | template<class T> |
| 23 | struct A2 { |
| 24 | typedef T value_type; |
| 25 | }; |
| 26 | #endif |
| 27 | |
| 28 | int main() |
| 29 | { |
| 30 | BOOST_TEST_TRAIT_TRUE((boost::is_same<int, |
| 31 | boost::allocator_size_type<A1<char> >::type>)); |
| 32 | #if !defined(BOOST_NO_CXX11_ALLOCATOR) |
| 33 | BOOST_TEST_TRAIT_TRUE((boost::is_same< |
| 34 | boost::make_unsigned<std::ptrdiff_t>::type, |
| 35 | boost::allocator_size_type<A2<int> >::type>)); |
| 36 | #endif |
| 37 | return boost::report_errors(); |
| 38 | } |
| 39 |