libstdc++-v3/testsuite/23_containers/bitset_ctor.cc

   1 // 1999-06-08 bkoz
   2
   3 // Copyright (C) 1999, 2000 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 23.3.5.1 bitset constructors
  22
  23 #include <string>
  24 #include <bitset>
  25 #include <debug_assert.h>
  26
  27 bool test01(void)
  28 {
  29   bool test = true;
  30
  31   // bitset()
  32   const size_t n1 = 5;
  33   std::bitset<n1> bit01;
  34   for (int i = 0; i < n1; ++i)
  35     VERIFY( !bit01.test(i) );
  36
  37   // bitset(unsigned long)
  38   const size_t n2 = 32;
  39   unsigned long ul1 = 2;
  40   std::bitset<n2> bit02(ul1);
  41   VERIFY( !bit02.test(0) );
  42   VERIFY( bit02.test(1) );
  43   VERIFY( !bit02.test(2) );
  44
  45   // template<_CharT, _Traits, _Alloc>
  46   // explicit bitset(const basic_string<_C,_T,_A>&, size_type pos, size_type n)
  47   std::string str01("stuff smith sessions");
  48   const size_t n3 = 128;
  49   try {
  50     std::bitset<n3> bit03(str01, 5);
  51   }
  52   catch(std::invalid_argument& fail) {
  53     VERIFY( true );
  54   }
  55   catch(...) {
  56     VERIFY( false );
  57   }
  58
  59   std::string str02("010101000011");
  60   int sz = str02.size();
  61   try {
  62     std::bitset<n3> bit03(str02, 0);
  63     std::string str03;
  64     for (int i = 0; i < sz; ++i)
  65       str03 += (bit03.test(i) ? '1' : '0');
  66     std::reverse(str03.begin(), str03.end());
  67     VERIFY( str03 == str02 );
  68   }
  69   catch(std::invalid_argument& fail) {
  70     VERIFY( false );
  71   }
  72   catch(...) {
  73     VERIFY( false );
  74   }
  75
  76
  77 #ifdef DEBUG_ASSERT
  78   assert(test);
  79 #endif
  80   return test;
  81 }
  82
  83 int main()
  84 {
  85   test01();
  86
  87   return 0;
  88 }