gcc/cp/new2.cc

   1 // Boilerplate support routines for -*- C++ -*- dynamic memory management.
   2 // Copyright (C) 1997, 1998, 1999 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, if you link this library with other files,
  22 // some of which are compiled with GCC, to produce an executable,
  23 // this library does not by itself cause the resulting executable
  24 // to be covered by the GNU General Public License.
  25 // This exception does not however invalidate any other reasons why
  26 // the executable file might be covered by the GNU General Public License.
  27
  28 #include "new"
  29
  30 extern "C" void free (void *);
  31
  32 #define WEAK(x) \
  33   x __attribute__ ((weak)); \
  34   x
  35
  36 #ifdef L_op_vnew
  37 WEAK(void * operator new[] (size_t sz) throw (std::bad_alloc))
  38 {
  39   return ::operator new(sz);
  40 }
  41 #endif
  42
  43 #ifdef L_op_vnewnt
  44 WEAK(void *operator new[] (size_t sz, const std::nothrow_t& nothrow) throw())
  45 {
  46   return ::operator new(sz, nothrow);
  47 }
  48 #endif
  49
  50 #ifdef L_op_delete
  51 WEAK (void operator delete (void *ptr) throw ())
  52 {
  53   if (ptr)
  54     free (ptr);
  55 }
  56 #endif
  57
  58 #ifdef L_op_vdel
  59 WEAK (void operator delete[] (void *ptr) throw ())
  60 {
  61   if (ptr)
  62     free (ptr);
  63 }
  64 #endif
  65
  66 #ifdef L_op_delnt
  67 WEAK (void operator delete (void *ptr, const std::nothrow_t&) throw ())
  68 {
  69   if (ptr)
  70     free (ptr);
  71 }
  72 #endif
  73
  74 #ifdef L_op_vdelnt
  75 WEAK (void operator delete[] (void *ptr, const std::nothrow_t&) throw ())
  76 {
  77   if (ptr)
  78     free (ptr);
  79 }
  80 #endif