libstdc++-v3/testsuite/27_io/basic_istream/ws/char/1.cc

   1 // 1999-07-22 bkoz
   2
   3 // Copyright (C) 1994, 1999, 2001, 2003, 2009 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 // 27.6.1.4 standard basic_istream manipulators
  21
  22 #include <istream>
  23 #include <sstream>
  24 #include <stdexcept>
  25 #include <testsuite_hooks.h>
  26
  27 void test01(void)
  28 {
  29   bool test __attribute__((unused)) = true;
  30
  31   const char str_lit01[] = "  venice ";
  32   const std::string str01(" santa barbara ");
  33   std::string str02(str_lit01);
  34   std::string str04;
  35   std::string str05;
  36   std::ios_base::iostate flag3, flag4, flag5;
  37
  38   // template<_CharT, _Traits>
  39   //  basic_istream<_CharT, _Traits>& ws(basic_istream<_Char, _Traits>& is)
  40   std::istringstream iss01(str01);
  41   std::istringstream iss02(str01);
  42
  43   iss01 >> str04;
  44   VERIFY( str04.size() != str01.size() );
  45   VERIFY( str04 == "santa" );
  46
  47   iss02 >> std::ws;
  48   iss02 >> str05;
  49   VERIFY( str05.size() != str01.size() );
  50   VERIFY( str05 == "santa" );
  51   VERIFY( str05 == str04 );
  52
  53   iss01 >> str04;
  54   VERIFY( str04.size() != str01.size() );
  55   VERIFY( str04 == "barbara" );
  56
  57   iss02 >> std::ws;
  58   iss02 >> str05;
  59   VERIFY( str05.size() != str01.size() );
  60   VERIFY( str05 == "barbara" );
  61   VERIFY( str05 == str04 );
  62
  63   flag3 = std::ios_base::eofbit;
  64   flag4 = std::ios_base::badbit;
  65   flag5 = std::ios_base::failbit;
  66   VERIFY( !iss01.fail() );
  67   VERIFY( !iss02.fail() );
  68   VERIFY( !iss01.eof() );
  69   VERIFY( !iss02.eof() );
  70
  71   iss01 >> std::ws;
  72   VERIFY( !iss01.fail() );
  73   VERIFY( iss01.eof() );
  74 }
  75
  76 int main()
  77 {
  78   test01();
  79   return 0;
  80 }