// The -*- C++ -*- dynamic memory management header.

// Copyright (C) 1994, 1996, 1997, 1998, 2000, 2001, 2002

// Free Software Foundation

// This file is part of GCC.

//

// GCC is free software; you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation; either version 2, or (at your option)

// any later version.

// 

// GCC is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// 

// You should have received a copy of the GNU General Public License

// along with GCC; see the file COPYING.  If not, write to

// the Free Software Foundation, 59 Temple Place - Suite 330,

// Boston, MA 02111-1307, USA.

// 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.

/** @file new

 *  The header @c new defines several functions to manage dynamic memory and

 *  handling memory allocation errors; see

 *  http://gcc.gnu.org/onlinedocs/libstdc++/18_support/howto.html#4 for more.

 */

#ifndef _NEW

#define _NEW

#include <cstddef>

#include <exception>

extern "C++" {

namespace std 

{

  /**

   *  @brief  Exception possibly thrown by @c new.

   *

   *  @c bad_alloc (or classes derived from it) is used to report allocation

   *  errors from the throwing forms of @c new.  */

  class bad_alloc : public exception 

  {

  public:

    bad_alloc() throw() { }

    // This declaration is not useless:

    // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118

    virtual ~bad_alloc() throw();

  };

  struct nothrow_t { };

  extern const nothrow_t nothrow;

  /** If you write your own error handler to be called by @c new, it must

   *  be of this type.  */

  typedef void (*new_handler)();

  /// Takes a replacement handler as the argument, returns the previous handler.

  new_handler set_new_handler(new_handler) throw();

} // namespace std

//@{

/** These are replaceable signatures:

 *  - normal single new and delete (no arguments, throw @c bad_alloc on error)

 *  - normal array new and delete (same)

 *  - @c nothrow single new and delete (take a @c nothrow argument, return

 *    @c NULL on error)

 *  - @c nothrow array new and delete (same)

 *

 *  Placement new and delete signatures (take a memory address argument,

 *  does nothing) may not be replaced by a user's program.

*/

void* operator new(std::size_t) throw (std::bad_alloc);

void* operator new[](std::size_t) throw (std::bad_alloc);

void operator delete(void*) throw();

void operator delete[](void*) throw();

void* operator new(std::size_t, const std::nothrow_t&) throw();

void* operator new[](std::size_t, const std::nothrow_t&) throw();

void operator delete(void*, const std::nothrow_t&) throw();

void operator delete[](void*, const std::nothrow_t&) throw();

// Default placement versions of operator new.

inline void* operator new(std::size_t, void* __p) throw() { return __p; }

inline void* operator new[](std::size_t, void* __p) throw() { return __p; }

// Default placement versions of operator delete.

inline void  operator delete  (void*, void*) throw() { }

inline void  operator delete[](void*, void*) throw() { }

//@}

} // extern "C++"

#endif