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- // Copyright 2018 Daniel James.
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #include <boost/detail/allocator_utilities.hpp>
- #include <boost/static_assert.hpp>
- #include <cassert>
- typedef std::allocator<int> std_int_allocator;
- typedef boost::detail::allocator::rebind_to<std_int_allocator, char>::type char_allocator;
- typedef boost::detail::allocator::rebind_to<char_allocator, int>::type int_allocator;
- typedef boost::detail::allocator::rebind_to<int_allocator, char>::type char_allocator2;
- int main() {
- BOOST_STATIC_ASSERT((!boost::is_same<char_allocator, int_allocator>::value));
- BOOST_STATIC_ASSERT((boost::is_same<char_allocator, char_allocator2>::value));
- // Check the constructors works okay
- std_int_allocator a1;
- char_allocator a2(a1);
- char_allocator a2a(a2);
- int_allocator a3(a2);
- // Check allocate works okay
- {
- char_allocator::pointer p = a2.allocate(10);
- assert(p);
- a2.deallocate(p, 10);
- }
- // Try using the standalone construct/destroy
- {
- int_allocator::pointer p2 = a3.allocate(1);
- boost::detail::allocator::construct(p2, 25);
- assert(*p2 == 25);
- boost::detail::allocator::destroy(p2);
- a3.deallocate(p2, 1);
- }
- }
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