gcc/cp/new2.cc

   1 // Boilerplate support routines for -*- C++ -*- dynamic memory management.
   2 // Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation
   3
   4 // This file is part of GNU CC.
   5
   6 // GNU CC is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // GNU CC is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with GNU CC; see the file COPYING.  If not, write to
  18 // the Free Software Foundation, 59 Temple Place - Suite 330,
  19 // Boston, MA 02111-1307, USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 #include "new"
  31
  32 extern "C" void free (void *);
  33
  34 #define WEAK(x) \
  35   x __attribute__ ((weak)); \
  36   x
  37
  38 #ifdef L_op_vnew
  39 WEAK(void * operator new[] (size_t sz) throw (std::bad_alloc))
  40 {
  41   return ::operator new(sz);
  42 }
  43 #endif
  44
  45 #ifdef L_op_vnewnt
  46 WEAK(void *operator new[] (size_t sz, const std::nothrow_t& nothrow) throw())
  47 {
  48   return ::operator new(sz, nothrow);
  49 }
  50 #endif
  51
  52 #ifdef L_op_delete
  53 WEAK (void operator delete (void *ptr) throw ())
  54 {
  55   if (ptr)
  56     free (ptr);
  57 }
  58 #endif
  59
  60 #ifdef L_op_vdel
  61 WEAK (void operator delete[] (void *ptr) throw ())
  62 {
  63   ::operator delete (ptr);
  64 }
  65 #endif
  66
  67 #ifdef L_op_delnt
  68 WEAK (void operator delete (void *ptr, const std::nothrow_t&) throw ())
  69 {
  70   if (ptr)
  71     free (ptr);
  72 }
  73 #endif
  74
  75 #ifdef L_op_vdelnt
  76 WEAK (void operator delete[] (void *ptr, const std::nothrow_t&) throw ())
  77 {
  78   ::operator delete (ptr);
  79 }
  80 #endif