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// Copyright 2006-2009 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)
#if !defined(BOOST_UNORDERED_TEST_MALLOC_ALLOCATOR_HEADER)
#define BOOST_UNORDERED_TEST_MALLOC_ALLOCATOR_HEADER
#include <cstddef>
#include <cstdlib>
#include <boost/limits.hpp>
#include <new>
#if defined(BOOST_MSVC)
#pragma warning(push)
#pragma warning(disable:4100) // unreferenced formal parameter
#endif
namespace test
{
template <class T>
struct malloc_allocator
{
typedef std::size_t size_type;
typedef std::ptrdiff_t difference_type;
typedef T* pointer;
typedef T const* const_pointer;
typedef T& reference;
typedef T const& const_reference;
typedef T value_type;
template <class U> struct rebind { typedef malloc_allocator<U> other; };
malloc_allocator() {}
template <class Y> malloc_allocator(malloc_allocator<Y> const&) {}
malloc_allocator(malloc_allocator const&) {}
pointer address(reference r) { return &r; }
const_pointer address(const_reference r) { return &r; }
pointer allocate(size_type n) {
using namespace std;
T* ptr = static_cast<T*>(malloc(n * sizeof(T)));
if(!ptr) throw std::bad_alloc();
return ptr;
}
pointer allocate(size_type n, void const* u) { return allocate(n); }
void deallocate(pointer p, size_type) {
using namespace std;
free(p);
}
void construct(pointer p, T const& t) { new(p) T(t); }
void destroy(pointer p) { p->~T(); }
size_type max_size() const {
return (std::numeric_limits<size_type>::max)();
}
bool operator==(malloc_allocator const&) const { return true; }
bool operator!=(malloc_allocator const&) const { return false; }
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
template <class T> void deallocate(T* p, size_type) {
using namespace std;
free(p);
}
char* _Charalloc(size_type n) {
using namespace std;
T* ptr = static_cast<T*>(malloc(n * sizeof(char)));
if(!ptr) throw std::bad_alloc();
return (char*) ptr;
}
#endif
};
}
#if defined(BOOST_MSVC)
#pragma warning(pop)
#pragma warning(disable:4100) // unreferenced formal parameter
#endif
#endif
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