41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
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// Copyright 2018 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 <boost/detail/allocator_utilities.hpp>
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#include <boost/static_assert.hpp>
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#include <cassert>
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typedef std::allocator<int> std_int_allocator;
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typedef boost::detail::allocator::rebind_to<std_int_allocator, char>::type char_allocator;
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typedef boost::detail::allocator::rebind_to<char_allocator, int>::type int_allocator;
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typedef boost::detail::allocator::rebind_to<int_allocator, char>::type char_allocator2;
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int main() {
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BOOST_STATIC_ASSERT((!boost::is_same<char_allocator, int_allocator>::value));
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BOOST_STATIC_ASSERT((boost::is_same<char_allocator, char_allocator2>::value));
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// Check the constructors works okay
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std_int_allocator a1;
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char_allocator a2(a1);
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char_allocator a2a(a2);
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int_allocator a3(a2);
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// Check allocate works okay
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{
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char_allocator::pointer p = a2.allocate(10);
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assert(p);
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a2.deallocate(p, 10);
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}
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// Try using the standalone construct/destroy
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{
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int_allocator::pointer p2 = a3.allocate(1);
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boost::detail::allocator::construct(p2, 25);
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assert(*p2 == 25);
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boost::detail::allocator::destroy(p2);
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a3.deallocate(p2, 1);
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}
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}
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