forked from boostorg/unordered
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
|
|
// Copyright 2006-2007 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>
|
|
|
|
#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) {
|
|
return static_cast<T*>(malloc(n * sizeof(T)));
|
|
}
|
|
|
|
pointer allocate(size_type n, const_pointer u) { return allocate(n); }
|
|
void deallocate(pointer p, size_type) { 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& x) const { return true; }
|
|
bool operator!=(malloc_allocator const& x) const { return false; }
|
|
|
|
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
|
template <class T> void deallocate(T* p, size_type) {
|
|
free(p);
|
|
}
|
|
char* _Charalloc(size_type n) {
|
|
return static_cast<char*>(malloc(n * sizeof(char)));
|
|
}
|
|
#endif
|
|
};
|
|
}
|
|
|
|
#if defined(BOOST_MSVC)
|
|
#pragma warning(pop)
|
|
#pragma warning(disable:4100) // unreferenced formal parameter
|
|
#endif
|
|
|
|
#endif
|