libstdc++-v3/testsuite/23_containers/unordered_set/operations/count.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // 2011-10-28  Paolo Carlini  <paolo.carlini@oracle.com>
   4
   5 // Copyright (C) 2011-2016 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21 //
  22
  23 #include <unordered_set>
  24 #include <testsuite_hooks.h>
  25
  26 void test01()
  27 {
  28   bool test __attribute__((unused)) = true;
  29   using namespace std;
  30
  31   unordered_set<int> us0;
  32   VERIFY( us0.count(0) == 0 );
  33   VERIFY( us0.count(1) == 0 );
  34
  35   us0.insert(1);
  36   VERIFY( us0.count(0) == 0 );
  37   VERIFY( us0.count(1) == 1 );
  38
  39   us0.insert(1);
  40   VERIFY( us0.count(0) == 0 );
  41   VERIFY( us0.count(1) == 1 );
  42
  43   us0.insert(2);
  44   VERIFY( us0.count(2) == 1 );
  45
  46   us0.insert(3);
  47   us0.insert(3);
  48   us0.insert(3);
  49   VERIFY( us0.count(3) == 1 );
  50
  51   us0.erase(2);
  52   VERIFY( us0.count(2) == 0 );
  53
  54   us0.erase(0);
  55   VERIFY( us0.count(0) == 0 );
  56
  57   unordered_set<int> us1(us0);
  58   VERIFY( us1.count(0) == 0 );
  59   VERIFY( us1.count(1) == 1 );
  60   VERIFY( us1.count(2) == 0 );
  61   VERIFY( us1.count(3) == 1 );
  62
  63   us0.clear();
  64   VERIFY( us0.count(0) == 0 );
  65   VERIFY( us0.count(1) == 0 );
  66   VERIFY( us0.count(2) == 0 );
  67   VERIFY( us0.count(3) == 0 );
  68
  69   us1.insert(4);
  70   us1.insert(5);
  71   us1.insert(5);
  72   us1.insert(5);
  73   us1.insert(5);
  74   VERIFY( us1.count(4) == 1 );
  75   VERIFY( us1.count(5) == 1 );
  76
  77   us1.erase(1);
  78   VERIFY( us1.count(1) == 0 );
  79
  80   us1.erase(us1.find(5));
  81   VERIFY( us1.count(5) == 0 );
  82
  83   us1.insert(1);
  84   us1.insert(1);
  85   VERIFY( us1.count(1) == 1 );
  86
  87   us1.erase(5);
  88   VERIFY( us1.count(5) == 0 );
  89
  90   us1.erase(us1.find(4));
  91   VERIFY( us1.count(4) == 0 );
  92
  93   us1.clear();
  94   VERIFY( us1.count(0) == 0 );
  95   VERIFY( us1.count(1) == 0 );
  96   VERIFY( us1.count(2) == 0 );
  97   VERIFY( us1.count(3) == 0 );
  98   VERIFY( us1.count(4) == 0 );
  99   VERIFY( us1.count(5) == 0 );
 100 }
 101
 102 int main()
 103 {
 104   test01();
 105   return 0;
 106 }