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

   1 // 1999-07-26 bkoz
   2
   3 // Copyright (C) 1999, 2003 Free Software Foundation
   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 // 27.6.1.2.3 character extractors
  22
  23 #include <istream>
  24 #include <sstream>
  25 #include <testsuite_hooks.h>
  26
  27 void test02()
  28 {
  29   typedef std::ios::traits_type ctraits_type;
  30
  31   bool test __attribute__((unused)) = true;
  32   std::string str_01;
  33   const std::string str_02("or coltrane playing tunji with jimmy garrison");
  34   const std::string str_03("coltrane");
  35
  36   std::stringbuf isbuf_01(std::ios_base::in);
  37   std::stringbuf isbuf_02(str_02, std::ios_base::in);
  38   std::istream is_01(NULL);
  39   std::istream is_02(&isbuf_02);
  40   std::ios_base::iostate state1, state2, statefail;
  41   statefail = std::ios_base::failbit;
  42
  43   // template<_CharT, _Traits>
  44   //  basic_istream& operator>>(istream&, _CharT&)
  45   char c1 = 'c', c2 = 'c';
  46   state1 = is_01.rdstate();
  47   is_01 >> c1;
  48   state2 = is_01.rdstate();
  49   VERIFY( state1 != state2 );
  50   VERIFY( c1 == c2 );
  51   VERIFY( static_cast<bool>(state2 & statefail) );
  52
  53   state1 = is_02.rdstate();
  54   is_02 >> c1;
  55   state2 = is_02.rdstate();
  56   VERIFY( state1 == state2 );
  57   VERIFY( c1 == 'o' );
  58   is_02 >> c1;
  59   is_02 >> c1;
  60   VERIFY( c1 == 'c' );
  61   VERIFY( !static_cast<bool>(state2 & statefail) );
  62
  63   // template<_CharT, _Traits>
  64   //  basic_istream& operator>>(istream&, unsigned char&)
  65   unsigned char uc1 = 'c';
  66   state1 = is_02.rdstate();
  67   is_02 >> uc1;
  68   state2 = is_02.rdstate();
  69   VERIFY( state1 == state2 );
  70   VERIFY( uc1 == 'o' );
  71   is_02 >> uc1;
  72   is_02 >> uc1;
  73   VERIFY( uc1 == 't' );
  74
  75   // template<_CharT, _Traits>
  76   //  basic_istream& operator>>(istream&, signed char&)
  77   signed char sc1 = 'c';
  78   state1 = is_02.rdstate();
  79   is_02 >> sc1;
  80   state2 = is_02.rdstate();
  81   VERIFY( state1 == state2 );
  82   VERIFY( sc1 == 'r' );
  83   is_02 >> sc1;
  84   is_02 >> sc1;
  85   VERIFY( sc1 == 'n' );
  86 }
  87
  88 int main()
  89 {
  90   test02();
  91   return 0;
  92 }