libstdc++-v3/testsuite/util/testsuite_new_operators.h

   1 // -*- C++ -*-
   2 // Utility subroutines for the C++ library testsuite.
   3 //
   4 // Copyright (C) 2000-2022 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // This library 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 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20 //
  21
  22 #ifndef _GLIBCXX_TESTSUITE_NEW_OPERATORS_H
  23 #define _GLIBCXX_TESTSUITE_NEW_OPERATORS_H
  24
  25 #include <new>
  26 #include <testsuite_hooks.h>
  27
  28 namespace __gnu_test
  29 {
  30   std::size_t&
  31   get_new_limit()
  32   {
  33     static std::size_t limit = 1024 * 1024;
  34     return limit;
  35   }
  36
  37   void
  38   set_new_limit(std::size_t l)
  39   { get_new_limit() = l; }
  40 }
  41
  42 void* operator new(std::size_t size) THROW(std::bad_alloc)
  43 {
  44   if (size > __gnu_test::get_new_limit())
  45     throw std::bad_alloc();
  46
  47   void* p = std::malloc(size);
  48   if (!p)
  49     throw std::bad_alloc();
  50
  51   return p;
  52 }
  53
  54 void* operator new (std::size_t size, const std::nothrow_t&) throw()
  55 {
  56   if (size > __gnu_test::get_new_limit())
  57     return 0;
  58
  59   return std::malloc(size);
  60 }
  61
  62 void operator delete(void* p) throw()
  63 {
  64   if (p)
  65     std::free(p);
  66 }
  67
  68 #if __cpp_sized_deallocation
  69 void operator delete(void* p, std::size_t) throw()
  70 { ::operator delete(p); }
  71 #endif
  72
  73 void operator delete(void* p, const std::nothrow_t&) throw()
  74 {
  75   if (p)
  76     std::free(p);
  77 }
  78
  79
  80 #endif // _GLIBCXX_TESTSUITE_NEW_OPERATORS_H
  81
  82