libstdc++-v3/testsuite/27_io/basic_istream/get/char/3.cc

   1 // 2004-11-26  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2004-2020 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 <sstream>
  23 #include <testsuite_hooks.h>
  24
  25 // DR 243. get and getline when sentry reports failure.
  26 void test01()
  27 {
  28   using namespace std;
  29
  30   stringbuf strbuf01;
  31   stringbuf strbuf02;
  32   istream istr01(&strbuf01);
  33   istream istr02(&strbuf02);
  34   char buf02[2] = "*" ;
  35
  36   istr01.peek();
  37   VERIFY( istr01.eof() );
  38
  39   istr01.get(0, 0);
  40   VERIFY( istr01.gcount() == 0 );
  41   VERIFY( istr01.fail() );
  42
  43   istr02.peek();
  44   VERIFY( istr02.eof() );
  45
  46   istr02.get(buf02, 1);
  47   VERIFY( istr02.gcount() == 0 );
  48   VERIFY( istr02.fail() );
  49   VERIFY( buf02[0] == char() );
  50 }
  51
  52 int main()
  53 {
  54   test01();
  55   return 0;
  56 }