libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/char/2.cc

   1 // 1999-07-26 bkoz
   2
   3 // Copyright (C) 1999-2014 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 // 27.6.1.2.3 character extractors
  21
  22 #include <istream>
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 void test02()
  27 {
  28   typedef std::ios::traits_type ctraits_type;
  29
  30   bool test __attribute__((unused)) = true;
  31   std::string str_01;
  32   const std::string str_02("or coltrane playing tunji with jimmy garrison");
  33   const std::string str_03("coltrane");
  34
  35   std::stringbuf isbuf_01(std::ios_base::in);
  36   std::stringbuf isbuf_02(str_02, std::ios_base::in);
  37   std::istream is_01(0);
  38   std::istream is_02(&isbuf_02);
  39   std::ios_base::iostate state1, state2, statefail;
  40   statefail = std::ios_base::failbit;
  41
  42   // template<_CharT, _Traits>
  43   //  basic_istream& operator>>(istream&, _CharT&)
  44   char c1 = 'c', c2 = 'c';
  45   state1 = is_01.rdstate();
  46   is_01 >> c1;
  47   state2 = is_01.rdstate();
  48   VERIFY( state1 != state2 );
  49   VERIFY( c1 == c2 );
  50   VERIFY( static_cast<bool>(state2 & statefail) );
  51
  52   state1 = is_02.rdstate();
  53   is_02 >> c1;
  54   state2 = is_02.rdstate();
  55   VERIFY( state1 == state2 );
  56   VERIFY( c1 == 'o' );
  57   is_02 >> c1;
  58   is_02 >> c1;
  59   VERIFY( c1 == 'c' );
  60   VERIFY( !static_cast<bool>(state2 & statefail) );
  61
  62   // template<_CharT, _Traits>
  63   //  basic_istream& operator>>(istream&, unsigned char&)
  64   unsigned char uc1 = 'c';
  65   state1 = is_02.rdstate();
  66   is_02 >> uc1;
  67   state2 = is_02.rdstate();
  68   VERIFY( state1 == state2 );
  69   VERIFY( uc1 == 'o' );
  70   is_02 >> uc1;
  71   is_02 >> uc1;
  72   VERIFY( uc1 == 't' );
  73
  74   // template<_CharT, _Traits>
  75   //  basic_istream& operator>>(istream&, signed char&)
  76   signed char sc1 = 'c';
  77   state1 = is_02.rdstate();
  78   is_02 >> sc1;
  79   state2 = is_02.rdstate();
  80   VERIFY( state1 == state2 );
  81   VERIFY( sc1 == 'r' );
  82   is_02 >> sc1;
  83   is_02 >> sc1;
  84   VERIFY( sc1 == 'n' );
  85 }
  86
  87 int main()
  88 {
  89   test02();
  90   return 0;
  91 }