libstdc++-v3/testsuite/23_containers/unordered_set/debug/debug_functions.cc

   1 // Copyright (C) 2013 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8 //
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17 //
  18 // { dg-options "-std=gnu++11" }
  19 // { dg-require-debug-mode "" }
  20
  21 #include <unordered_set>
  22 #include <testsuite_hooks.h>
  23
  24 void test01()
  25 {
  26   bool test __attribute__((unused)) = true;
  27   using namespace __gnu_debug;
  28
  29   std::unordered_set<int> u = { 0, 1, 2 };
  30   VERIFY( __check_dereferenceable(u.begin()) );
  31   auto it = u.begin();
  32   VERIFY( __check_dereferenceable(it) );
  33
  34   VERIFY( __check_dereferenceable(u.cbegin()) );
  35   auto cit = u.begin();
  36   VERIFY( __check_dereferenceable(cit) );
  37
  38   VERIFY( !__check_dereferenceable(u.end()) );
  39   it = u.end();
  40   VERIFY( !__check_dereferenceable(it) );
  41
  42   auto bucket = u.bucket(0);
  43   VERIFY( __check_dereferenceable(u.begin(bucket)) );
  44   auto lit = u.begin(bucket);
  45   VERIFY( __check_dereferenceable(lit) );
  46
  47   VERIFY( !__check_dereferenceable(u.end(bucket)) );
  48 }
  49
  50 void test02()
  51 {
  52   bool test __attribute__((unused)) = true;
  53   using namespace __gnu_debug;
  54
  55   std::unordered_set<int> u = { 0, 1, 2 };
  56
  57   VERIFY( !__check_singular(u.end()) );
  58   auto it = u.end();
  59   VERIFY( !__check_singular(it) );
  60
  61   VERIFY( !__check_singular(u.begin()) );
  62   it = u.begin();
  63   VERIFY( !__check_singular(it) );
  64
  65   u.clear();
  66
  67   VERIFY( it._M_singular() );
  68   VERIFY( __check_singular(it) );
  69
  70   it = u.end();
  71   VERIFY( !it._M_singular() );
  72   VERIFY( !__check_singular(it) );
  73
  74   u = { 0, 1, 2 };
  75
  76   auto bucket = u.bucket(0);
  77   VERIFY( !__check_singular(u.begin(bucket)) );
  78   auto lit = u.begin(bucket);
  79   VERIFY( !__check_singular(lit) );
  80
  81   VERIFY( !__check_singular(u.end(bucket)) );
  82
  83   u.clear();
  84   VERIFY( __check_singular(lit) );
  85 }
  86
  87 int main()
  88 {
  89   test01();
  90   test02();
  91   return 0;
  92 }