libstdc++-v3/testsuite/20_util/allocator/1.cc

   1 // 2001-06-14  Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library 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 along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // { dg-require-effective-target std_allocator_new }
  21
  22 // 20.4.1.1 allocator members
  23
  24 #include <memory>
  25 #include <stdexcept>
  26 #include <cstdlib>
  27 #include <testsuite_hooks.h>
  28
  29 #if __cplusplus >= 201103L
  30 # define NOTHROW noexcept
  31 #else
  32 # define NOTHROW throw()
  33 #endif
  34
  35 struct gnu { };
  36
  37 bool check_new = false;
  38 bool check_delete = false;
  39
  40 void*
  41 operator new(std::size_t n) THROW(std::bad_alloc)
  42 {
  43   check_new = true;
  44   return std::malloc(n);
  45 }
  46
  47 void operator delete(void *v) NOTHROW
  48 {
  49   check_delete = true;
  50   return std::free(v);
  51 }
  52
  53 #if __cpp_sized_deallocation
  54 void operator delete(void *v, std::size_t) NOTHROW
  55 {
  56   ::operator delete(v);
  57 }
  58 #endif
  59
  60 void test01()
  61 {
  62   std::allocator<gnu> obj;
  63
  64   gnu* pobj = obj.allocate(256);
  65   VERIFY( check_new );
  66
  67   obj.deallocate(pobj, 256);
  68   VERIFY( check_delete );
  69 }
  70
  71 int main()
  72 {
  73   test01();
  74   return 0;
  75 }
  76