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

   1 // 1999-08-11 bkoz
   2
   3 // Copyright (C) 1999, 2000, 2001, 2002, 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 // 27.6.1.3 unformatted input functions
  22 // @require@ %-*.tst %-*.txt
  23 // @diff@ %-*.tst %-*.txt
  24
  25 #include <cstring> // for strncmp,...
  26 #include <istream>
  27 #include <sstream>
  28 #include <fstream>
  29 #include <testsuite_hooks.h>
  30
  31 void
  32 test02()
  33 {
  34   typedef std::char_traits<char>        traits_type;
  35
  36   bool test __attribute__((unused)) = true;
  37   const char str_lit01[] = "\t\t\t    sun*ra \n"
  38   "                            "
  39   "and his myth science arkestra present\n"
  40   "                            "
  41   "angles and demons @ play\n"
  42   "                            "
  43   "the nubians of plutonia";
  44   std::string str01(str_lit01);
  45   std::string strtmp;
  46
  47   std::stringbuf sbuf_04(str01, std::ios_base::in);
  48
  49   std::istream is_00(NULL);
  50   std::istream is_04(&sbuf_04);
  51   std::ios_base::iostate state1, state2, statefail, stateeof;
  52   statefail = std::ios_base::failbit;
  53   stateeof = std::ios_base::eofbit;
  54   char carray1[400] = "";
  55
  56   // istream& getline(char* s, streamsize n, char delim)
  57   // istream& getline(char* s, streamsize n)
  58   state1 = is_00.rdstate();
  59   is_00.getline(carray1, 20, '*');
  60   state2 = is_00.rdstate();
  61   // make sure failbit was set, since we couldn't extract
  62   // from the NULL streambuf...
  63   VERIFY( state1 != state2 );
  64   VERIFY( static_cast<bool>(state2 & statefail) );
  65
  66   VERIFY( is_04.gcount() == 0 );
  67   state1 = is_04.rdstate();
  68   is_04.getline(carray1, 1, '\t'); // extracts, throws away
  69   state2 = is_04.rdstate();
  70   VERIFY( is_04.gcount() == 1 );
  71   VERIFY( state1 == state2 );
  72   VERIFY( state1 == 0 );
  73   VERIFY( !traits_type::compare("", carray1, 1) );
  74
  75   state1 = is_04.rdstate();
  76   is_04.getline(carray1, 20, '*');
  77   state2 = is_04.rdstate();
  78   VERIFY( is_04.gcount() == 10 );
  79   VERIFY( state1 == state2 );
  80   VERIFY( state1 == 0 );
  81   VERIFY( !traits_type::compare("\t\t    sun", carray1, 10) );
  82
  83   state1 = is_04.rdstate();
  84   is_04.getline(carray1, 20);
  85   state2 = is_04.rdstate();
  86   VERIFY( is_04.gcount() == 4 );
  87   VERIFY( state1 == state2 );
  88   VERIFY( state1 == 0 );
  89   VERIFY( !traits_type::compare("ra ", carray1, 4) );
  90
  91   state1 = is_04.rdstate();
  92   is_04.getline(carray1, 65);
  93   state2 = is_04.rdstate();
  94   VERIFY( is_04.gcount() == 64 );
  95   VERIFY( state1 != state2 );
  96   VERIFY( state2 == statefail );
  97   VERIFY( !traits_type::compare(
  98   "                            and his myth science arkestra presen",
  99                                carray1, 65) );
 100
 101   is_04.clear();
 102   state1 = is_04.rdstate();
 103   is_04.getline(carray1, 120, '|');
 104   state2 = is_04.rdstate();
 105   VERIFY( is_04.gcount() == 106 );
 106   VERIFY( state1 != state2 );
 107   VERIFY( state2 == stateeof );
 108
 109   is_04.clear();
 110   state1 = is_04.rdstate();
 111   is_04.getline(carray1, 100, '|');
 112   state2 = is_04.rdstate();
 113   VERIFY( is_04.gcount() == 0 );
 114   VERIFY( state1 != state2 );
 115   VERIFY( static_cast<bool>(state2 & stateeof) );
 116   VERIFY( static_cast<bool>(state2 & statefail) );
 117 }
 118
 119 int
 120 main()
 121 {
 122   test02();
 123   return 0;
 124 }