forked from boostorg/unordered
93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
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// Copyright 2011 Daniel James.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include "../objects/test.hpp"
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#include <boost/core/lightweight_test.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <boost/unordered/detail/implementation.hpp>
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template <class Tp> struct SimpleAllocator
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{
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typedef Tp value_type;
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SimpleAllocator() {}
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template <class T> SimpleAllocator(const SimpleAllocator<T>&) {}
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Tp* allocate(std::size_t n)
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{
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return static_cast<Tp*>(::operator new(n * sizeof(Tp)));
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}
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void deallocate(Tp* p, std::size_t) { ::operator delete((void*)p); }
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};
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template <typename T> void test_simple_allocator()
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{
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test::check_instances check_;
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typedef boost::unordered::detail::allocator_traits<SimpleAllocator<T> >
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traits;
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BOOST_STATIC_ASSERT((boost::is_same<typename traits::allocator_type,
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SimpleAllocator<T> >::value));
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BOOST_STATIC_ASSERT((boost::is_same<typename traits::value_type, T>::value));
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BOOST_STATIC_ASSERT((boost::is_same<typename traits::pointer, T*>::value));
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BOOST_STATIC_ASSERT(
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(boost::is_same<typename traits::const_pointer, T const*>::value));
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// BOOST_STATIC_ASSERT((boost::is_same<typename traits::void_pointer, void*
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// >::value));
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// BOOST_STATIC_ASSERT((boost::is_same<typename traits::const_void_pointer,
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// void const*>::value));
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BOOST_STATIC_ASSERT(
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(boost::is_same<typename traits::difference_type, std::ptrdiff_t>::value));
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#if BOOST_UNORDERED_USE_ALLOCATOR_TRAITS == 1
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BOOST_STATIC_ASSERT((boost::is_same<typename traits::size_type,
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std::make_unsigned<std::ptrdiff_t>::type>::value));
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#else
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BOOST_STATIC_ASSERT(
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(boost::is_same<typename traits::size_type, std::size_t>::value));
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#endif
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BOOST_TEST(!traits::propagate_on_container_copy_assignment::value);
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BOOST_TEST(!traits::propagate_on_container_move_assignment::value);
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BOOST_TEST(!traits::propagate_on_container_swap::value);
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// rebind_alloc
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// rebind_traits
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SimpleAllocator<T> a;
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T* ptr1 = traits::allocate(a, 1);
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// T* ptr2 = traits::allocate(a, 1, static_cast<void const*>(ptr1));
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traits::construct(a, ptr1, T(10));
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// traits::construct(a, ptr2, T(30), ptr1);
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BOOST_TEST(*ptr1 == T(10));
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// BOOST_TEST(*ptr2 == T(30));
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traits::destroy(a, ptr1);
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// traits::destroy(a, ptr2);
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// traits::deallocate(a, ptr2, 1);
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traits::deallocate(a, ptr1, 1);
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traits::max_size(a);
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}
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int main()
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{
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test_simple_allocator<int>();
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test_simple_allocator<test::object>();
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return boost::report_errors();
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}
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