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

   1 // 1999-08-11 bkoz
   2
   3 // Copyright (C) 1999-2020 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 // 27.6.1.3 unformatted input functions
  21
  22 #include <istream>
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 void
  27 test03()
  28 {
  29   typedef std::char_traits<char>        traits_type;
  30
  31   const char str_lit01[] =
  32   "   sun*ra \n\t\t\t   & his arkestra, featuring john gilmore: \n"
  33   "                         "
  34     "jazz in silhouette: images and forecasts of tomorrow";
  35
  36   std::string str01(str_lit01);
  37   std::string strtmp;
  38
  39   std::stringbuf sbuf_03;
  40   std::stringbuf sbuf_04(str01, std::ios_base::in);
  41   std::stringbuf sbuf_05(str01, std::ios_base::in);
  42
  43   std::istream is_00(0);
  44   std::istream is_04(&sbuf_04);
  45   std::istream is_05(&sbuf_05);
  46   std::ios_base::iostate statefail, stateeof;
  47   statefail = std::ios_base::failbit;
  48   stateeof = std::ios_base::eofbit;
  49   char carray1[400] = "";
  50
  51   // int_type get()
  52   // istream& get(char*, streamsize, char delim)
  53   // istream& get(char*, streamsize)
  54   // istream& get(streambuf&, char delim)
  55   // istream& get(streambuf&)
  56   is_00.get(carray1, 2);
  57   VERIFY( static_cast<bool>(is_00.rdstate() & statefail) );
  58   VERIFY( is_00.gcount() == 0 );
  59
  60   is_04.get(carray1, 4);
  61   VERIFY( !(is_04.rdstate() & statefail) );
  62   VERIFY( !traits_type::compare(carray1, "   ", 4) );
  63   VERIFY( is_04.gcount() == 3 );
  64
  65   is_04.clear();
  66   is_04.get(carray1 + 3, 200);
  67   VERIFY( !(is_04.rdstate() & statefail) );
  68   VERIFY( !(is_04.rdstate() & stateeof) );
  69   VERIFY( !traits_type::compare(carray1, str_lit01, 10) );
  70   VERIFY( is_04.gcount() == 7 );
  71
  72   is_04.clear();
  73   is_04.get(carray1, 200);
  74   VERIFY( !(is_04.rdstate() & stateeof) );
  75   VERIFY( static_cast<bool>(is_04.rdstate() & statefail) ); // delimiter
  76   VERIFY( is_04.gcount() == 0 );
  77   is_04.clear();
  78   is_04.get(carray1, 200, '[');
  79   VERIFY( static_cast<bool>(is_04.rdstate() & stateeof) );
  80   VERIFY( !(is_04.rdstate() & statefail) );
  81   VERIFY( is_04.gcount() == 125 );
  82   is_04.clear();
  83   is_04.get(carray1, 200);
  84   VERIFY( static_cast<bool>(is_04.rdstate() & stateeof) );
  85   VERIFY( static_cast<bool>(is_04.rdstate() & statefail) );
  86   VERIFY( is_04.gcount() == 0 );
  87
  88   std::stringbuf sbuf_02(std::ios_base::in);
  89   is_05.clear();
  90   is_05.get(sbuf_02);
  91   VERIFY( is_05.gcount() == 0 );
  92   VERIFY( static_cast<bool>(is_05.rdstate() & statefail) );
  93   VERIFY( !(is_05.rdstate() & stateeof) );
  94
  95   is_05.clear();
  96   is_05.get(sbuf_03);
  97   VERIFY( is_05.gcount() == 10 );
  98   VERIFY( sbuf_03.str() == "   sun*ra " );
  99   VERIFY( !(is_05.rdstate() & statefail) );
 100   VERIFY( !(is_05.rdstate() & stateeof) );
 101
 102   is_05.clear();
 103   is_05.get(sbuf_03, '|');
 104   VERIFY( is_05.gcount() == 125 );
 105   VERIFY( sbuf_03.str() == str_lit01 );
 106   VERIFY( !(is_05.rdstate() & statefail) );
 107   VERIFY( static_cast<bool>(is_05.rdstate() & stateeof) );
 108
 109   is_05.clear();
 110   is_05.get(sbuf_03, '|');
 111   VERIFY( is_05.gcount() == 0 );
 112   VERIFY( static_cast<bool>(is_05.rdstate() & stateeof) );
 113   VERIFY( static_cast<bool>(is_05.rdstate() & statefail) );
 114 }
 115
 116 int
 117 main()
 118 {
 119   test03();
 120   return 0;
 121 }