117 lines
1.8 KiB
C++
117 lines
1.8 KiB
C++
#include <boost/config.hpp>
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// shared_ptr_alloc11_test.cpp
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//
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// Test the allocator constructor with a C++11 minimal allocator
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//
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// Copyright (c) 2005, 2014 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/shared_ptr.hpp>
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#include <memory>
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#include <cstddef>
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#if !defined( BOOST_NO_CXX11_ALLOCATOR )
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template< class T > class cxx11_allocator
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{
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public:
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typedef T value_type;
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cxx11_allocator()
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{
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}
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template< class Y > cxx11_allocator( cxx11_allocator<Y> const & )
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{
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}
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T * allocate( std::size_t n )
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{
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return static_cast< T* >( ::operator new( n * sizeof( T ) ) );
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}
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void deallocate( T * p, std::size_t n )
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{
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::operator delete( p );
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}
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};
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//
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struct D;
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struct X
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{
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static int instances;
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X(): deleted_( false )
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{
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++instances;
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}
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~X()
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{
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BOOST_TEST( deleted_ );
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--instances;
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}
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private:
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friend struct D;
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bool deleted_;
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X( X const & );
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X & operator=( X const & );
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};
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int X::instances = 0;
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struct D
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{
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void operator()( X * px ) const
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{
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px->deleted_ = true;
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delete px;
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}
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};
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int main()
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{
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BOOST_TEST( X::instances == 0 );
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boost::shared_ptr<void> pv( new X, D(), cxx11_allocator<X>() );
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BOOST_TEST( X::instances == 1 );
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pv.reset();
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BOOST_TEST( X::instances == 0 );
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pv.reset( new X, D(), cxx11_allocator<void>() );
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BOOST_TEST( X::instances == 1 );
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pv.reset();
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BOOST_TEST( X::instances == 0 );
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return boost::report_errors();
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}
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#else // !defined( BOOST_NO_CXX11_ALLOCATOR )
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int main()
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{
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return 0;
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}
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#endif
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