libstdc++-v3/testsuite/23_containers/bitset/cons/1.cc

   1 // 1999-06-08 bkoz
   2
   3 // Copyright (C) 1999-2013 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 // 23.3.5.1 bitset constructors
  21
  22 #include <string>
  23 #include <bitset>
  24 #include <algorithm> // std::reverse
  25 #include <stdexcept>
  26 #include <testsuite_hooks.h>
  27
  28 bool test01(void)
  29 {
  30   bool test __attribute__((unused)) = true;
  31
  32   // bitset()
  33   const size_t n1 = 5;
  34   std::bitset<n1> bit01;
  35   for (size_t i = 0; i < n1; ++i)
  36     VERIFY( !bit01.test(i) );
  37
  38   // bitset(unsigned long)
  39   const size_t n2 = 32;
  40   unsigned long ul1 = 2;
  41   std::bitset<n2> bit02(ul1);
  42   VERIFY( !bit02.test(0) );
  43   VERIFY( bit02.test(1) );
  44   VERIFY( !bit02.test(2) );
  45
  46   // template<_CharT, _Traits, _Alloc>
  47   // explicit bitset(const basic_string<_C,_T,_A>&, size_type pos, size_type n)
  48   std::string str01("stuff smith sessions");
  49   const size_t n3 = 128;
  50   try {
  51     std::bitset<n3> bit03(str01, 5);
  52   }
  53   catch(std::invalid_argument& fail) {
  54     VERIFY( true );
  55   }
  56   catch(...) {
  57     VERIFY( false );
  58   }
  59
  60   std::string str02("010101000011");
  61   int sz = str02.size();
  62   try {
  63     std::bitset<n3> bit03(str02, 0);
  64     std::string str03;
  65     for (int i = 0; i < sz; ++i)
  66       str03 += (bit03.test(i) ? '1' : '0');
  67     std::reverse(str03.begin(), str03.end());
  68     VERIFY( str03 == str02 );
  69   }
  70   catch(std::invalid_argument& fail) {
  71     VERIFY( false );
  72   }
  73   catch(...) {
  74     VERIFY( false );
  75   }
  76   return test;
  77 }
  78
  79 int main()
  80 {
  81   test01();
  82   return 0;
  83 }