libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/06.cc

   1 // 1999-04-12 bkoz
   2
   3 // Copyright (C) 1999-2024 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 // 27.6.1.2.2 arithmetic extractors
  21
  22 #include <istream>
  23 #include <sstream>
  24 #include <locale>
  25 #include <testsuite_hooks.h>
  26
  27 // http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00081.html
  28 // Jim Parsons
  29 void test06()
  30 {
  31   // default locale, grouping is turned off
  32   unsigned int h4;
  33   char c;
  34   std::string s("205,199,144");
  35   std::istringstream is(s);
  36
  37   is >> h4; // 205
  38   VERIFY( h4 == 205 );
  39   is >> c; // ','
  40   VERIFY( c == ',' );
  41
  42   is >> h4; // 199
  43   VERIFY( h4 == 199 );
  44   is >> c; // ','
  45   VERIFY( c == ',' );
  46
  47   is >> h4; // 144
  48   VERIFY( is.rdstate() == std::ios_base::eofbit );
  49   VERIFY( h4 == 144 );
  50   is >> c; // EOF
  51   VERIFY( c == ',' );
  52   VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) );
  53 }
  54
  55 int main()
  56 {
  57   test06();
  58   return 0;
  59 }