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// (C) Copyright John Maddock 2001.
// Use, modification and distribution are subject to 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)
// See http://www.boost.org/libs/config for most recent version.
// MACRO: BOOST_HAS_PARTIAL_STD_ALLOCATOR
// TITLE: limited std::allocator support
// DESCRIPTION: The std lib has at least some kind of stanfard allocator
// with allocate/deallocate members and probably not much more.
#include <memory>
#if defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)))
# define BOOST_UNUSED_ATTRIBUTE __attribute__((unused))
#else
# define BOOST_UNUSED_ATTRIBUTE
#endif
namespace boost_has_partial_std_allocator{
//
// test everything except rebind template members:
//
template <class T>
int test_allocator(const T& i)
{
typedef std::allocator<int> alloc1_t;
#if !((__cplusplus > 201700) || (defined(_MSVC_LANG) && (_MSVC_LANG > 201700)))
typedef typename alloc1_t::size_type size_type;
typedef typename alloc1_t::difference_type difference_type BOOST_UNUSED_ATTRIBUTE;
typedef typename alloc1_t::pointer pointer;
typedef typename alloc1_t::const_pointer const_pointer;
typedef typename alloc1_t::reference reference;
typedef typename alloc1_t::const_reference const_reference;
typedef typename alloc1_t::value_type value_type BOOST_UNUSED_ATTRIBUTE;
#endif
alloc1_t a1;
(void)i;
#if !((__cplusplus > 201700) || (defined(_MSVC_LANG) && (_MSVC_LANG > 201700)))
pointer p = a1.allocate(1);
const_pointer cp = p;
a1.construct(p,i);
size_type s = a1.max_size();
(void)s;
reference r = *p;
const_reference cr = *cp;
if(p != a1.address(r)) return -1;
if(cp != a1.address(cr)) return -1;
a1.destroy(p);
a1.deallocate(p,1);
#endif
return 0;
}
int test()
{
return test_allocator(0);
}
}
#undef BOOST_UNUSED_ATTRIBUTE
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