libstdc++-v3/libsupc++/new_opvnt.cc

   1 // Boilerplate support routines for -*- C++ -*- dynamic memory management.
   2
   3 // Copyright (C) 1997-2018 Free Software Foundation, Inc.
   4 //
   5 // This file is part of GCC.
   6 //
   7 // GCC is free software; you can redistribute it and/or modify
   8 // it under the terms of the GNU General Public License as published by
   9 // the Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // GCC is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // Under Section 7 of GPL version 3, you are granted additional
  18 // permissions described in the GCC Runtime Library Exception, version
  19 // 3.1, as published by the Free Software Foundation.
  20
  21 // You should have received a copy of the GNU General Public License and
  22 // a copy of the GCC Runtime Library Exception along with this program;
  23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 // <http://www.gnu.org/licenses/>.
  25
  26 #include <bits/c++config.h>
  27 #include "new"
  28
  29 _GLIBCXX_WEAK_DEFINITION void*
  30 operator new[] (std::size_t sz, const std::nothrow_t&) noexcept
  31 {
  32   // _GLIBCXX_RESOLVE_LIB_DEFECTS
  33   // 206. operator new(size_t, nothrow) may become unlinked to ordinary
  34   // operator new if ordinary version replaced
  35   __try
  36     {
  37       return ::operator new[](sz);
  38     }
  39   __catch (...)
  40     {
  41       return nullptr;
  42     }
  43 }