std_alloc

// vi:set ft=cpp: -*- Mode: C++ -*-
/*
 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
 *               Alexander Warg <warg@os.inf.tu-dresden.de>
 *     economic rights: Technische Universität Dresden (Germany)
 *
 * This file is part of TUD:OS and distributed under the terms of the
 * GNU General Public License 2.
 * Please see the COPYING-GPL-2 file for details.
 *
 * As a special exception, you may use this file as part of a free software
 * library without restriction.  Specifically, if other files instantiate
 * templates or use macros or inline functions from this file, or you compile
 * this file and link it with other files to produce an executable, this
 * file does not by itself cause the resulting executable to be covered by
 * the GNU General Public License.  This exception does not however
 * invalidate any other reasons why the executable file might be covered by
 * the GNU General Public License.
 */
 
#pragma once
 
#include <stddef.h>
namespace cxx {
class Nothrow {};
}
 
inline void *operator new (size_t, void *mem, cxx::Nothrow const &) noexcept
{ return mem; }
 
void *operator new (size_t, cxx::Nothrow const &) noexcept;
 
void operator delete (void *, cxx::Nothrow const &) noexcept;
 
namespace cxx {
 
 
template< typename _Type >
class New_allocator
{
public:
  enum { can_free = true };
 
  New_allocator() noexcept {}
  New_allocator(New_allocator const &) noexcept {}
 
  ~New_allocator() noexcept {}
  
  _Type *alloc() noexcept
  { return static_cast<_Type*>(::operator new(sizeof (_Type), cxx::Nothrow())); }
  
  void free(_Type *t) noexcept
  { ::operator delete(t, cxx::Nothrow()); }
};
 
}