gomp-20050608-branch/libstdc++-v3/testsuite/27_io/basic_istream/getline/wchar_t/1.cc

   1 // Copyright (C) 2004 Free Software Foundation
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 2, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // 27.6.1.3 unformatted input functions
  20
  21 #include <istream>
  22 #include <sstream>
  23 #include <testsuite_hooks.h>
  24
  25 void
  26 test02()
  27 {
  28   typedef std::char_traits<wchar_t>     traits_type;
  29
  30   bool test __attribute__((unused)) = true;
  31   const wchar_t str_lit01[] = L"\t\t\t    sun*ra \n"
  32   L"                            "
  33   L"and his myth science arkestra present\n"
  34   L"                            "
  35   L"angles and demons @ play\n"
  36   L"                            "
  37   L"the nubians of plutonia";
  38   std::wstring str01(str_lit01);
  39   std::wstring strtmp;
  40
  41   std::wstringbuf sbuf_04(str01, std::ios_base::in);
  42
  43   std::wistream is_00(NULL);
  44   std::wistream is_04(&sbuf_04);
  45   std::ios_base::iostate state1, state2, statefail, stateeof;
  46   statefail = std::ios_base::failbit;
  47   stateeof = std::ios_base::eofbit;
  48   wchar_t carray1[400] = L"";
  49
  50   // istream& getline(wchar_t* s, streamsize n, wchar_t delim)
  51   // istream& getline(wchar_t* s, streamsize n)
  52   state1 = is_00.rdstate();
  53   is_00.getline(carray1, 20, L'*');
  54   state2 = is_00.rdstate();
  55   // make sure failbit was set, since we couldn't extract
  56   // from the NULL streambuf...
  57   VERIFY( state1 != state2 );
  58   VERIFY( static_cast<bool>(state2 & statefail) );
  59
  60   VERIFY( is_04.gcount() == 0 );
  61   state1 = is_04.rdstate();
  62   is_04.getline(carray1, 1, L'\t'); // extracts, throws away
  63   state2 = is_04.rdstate();
  64   VERIFY( is_04.gcount() == 1 );
  65   VERIFY( state1 == state2 );
  66   VERIFY( state1 == 0 );
  67   VERIFY( !traits_type::compare(L"", carray1, 1) );
  68
  69   state1 = is_04.rdstate();
  70   is_04.getline(carray1, 20, L'*');
  71   state2 = is_04.rdstate();
  72   VERIFY( is_04.gcount() == 10 );
  73   VERIFY( state1 == state2 );
  74   VERIFY( state1 == 0 );
  75   VERIFY( !traits_type::compare(L"\t\t    sun", carray1, 10) );
  76
  77   state1 = is_04.rdstate();
  78   is_04.getline(carray1, 20);
  79   state2 = is_04.rdstate();
  80   VERIFY( is_04.gcount() == 4 );
  81   VERIFY( state1 == state2 );
  82   VERIFY( state1 == 0 );
  83   VERIFY( !traits_type::compare(L"ra ", carray1, 4) );
  84
  85   state1 = is_04.rdstate();
  86   is_04.getline(carray1, 65);
  87   state2 = is_04.rdstate();
  88   VERIFY( is_04.gcount() == 64 );
  89   VERIFY( state1 != state2 );
  90   VERIFY( state2 == statefail );
  91   VERIFY( !traits_type::compare(
  92   L"                            and his myth science arkestra presen",
  93                                 carray1, 65) );
  94
  95   is_04.clear();
  96   state1 = is_04.rdstate();
  97   is_04.getline(carray1, 120, L'|');
  98   state2 = is_04.rdstate();
  99   VERIFY( is_04.gcount() == 106 );
 100   VERIFY( state1 != state2 );
 101   VERIFY( state2 == stateeof );
 102
 103   is_04.clear();
 104   state1 = is_04.rdstate();
 105   is_04.getline(carray1, 100, L'|');
 106   state2 = is_04.rdstate();
 107   VERIFY( is_04.gcount() == 0 );
 108   VERIFY( state1 != state2 );
 109   VERIFY( static_cast<bool>(state2 & stateeof) );
 110   VERIFY( static_cast<bool>(state2 & statefail) );
 111 }
 112
 113 int
 114 main()
 115 {
 116   test02();
 117   return 0;
 118 }