new

GCC编译器源代码

// The -*- C++ -*- dynamic memory management header.
// Copyright (C) 1994, 1996 Free Software Foundation

#ifndef __NEW__
#define __NEW__

#pragma interface "new"
#include <stddef.h>
#include <exception>

extern "C++" {

#if 0
namespace std {
#endif

  class bad_alloc : public exception {
  public:
    virtual const char* what() const throw() { return "bad_alloc"; }
  };

  struct nothrow_t {};
  extern const nothrow_t nothrow;
  typedef void (*new_handler)();
  extern "C" new_handler set_new_handler (new_handler);

#if 0
} // namespace std
#endif

// G++ implementation internals
extern new_handler __new_handler;
extern "C" void __default_new_handler (void);

// replaceable signatures
void *operator new (size_t);
void *operator new (size_t, const nothrow_t&) throw();
void *operator new[] (size_t);
void *operator new[] (size_t, const nothrow_t&) throw();
void operator delete (void *) throw();
void operator delete[] (void *) throw();

// default placement versions of operator new
inline void *operator new(size_t, void *place) throw() { return place; }
inline void *operator new[](size_t, void *place) throw() { return place; }
} // extern "C++"

#endif