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re PR libstdc++/12297 (istream::sentry::sentry() handles eof() incorrectly.)

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2003-11-26  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/12297
	* include/bits/istream.tcc
	(basic_istream::sentry::sentry): Set failbit and eofbit when eof.
	* testsuite/27_io/basic_istream/sentry/char/12297.cc: New.

From-SVN: r73968
This commit is contained in:
Benjamin Kosnik 2003-11-26 22:45:56 +00:00 committed by Benjamin Kosnik
parent aef81a9acb
commit 48f499cf81
3 changed files with 62 additions and 3 deletions
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7
libstdc++-v3/ChangeLog
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@ -1,3 +1,10 @@
2003-11-26 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/12297
* include/bits/istream.tcc
(basic_istream::sentry::sentry): Set failbit and eofbit when eof.
* testsuite/27_io/basic_istream/sentry/char/12297.cc: New.
2003-11-26 Paolo Carlini <pcarlini@suse.de>
Petur Runolfsson <peturr02@ru.is>

8
libstdc++-v3/include/bits/istream.tcc
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@ -46,6 +46,7 @@ namespace std
basic_istream<_CharT, _Traits>::sentry::
sentry(basic_istream<_CharT, _Traits>& __in, bool __noskipws)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
if (__in.good())
{
if (__in.tie())
@ -66,17 +67,18 @@ namespace std
// 195. Should basic_istream::sentry's constructor ever
// set eofbit?
if (traits_type::eq_int_type(__c, __eof))
__in.setstate(ios_base::eofbit);
__err |= ios_base::eofbit;
}
}
if (__in.good())
if (__in.good() && __err == ios_base::goodbit)
_M_ok = true;
else
{
_M_ok = false;
__in.setstate(ios_base::failbit);
__err |= ios_base::failbit;
}
__in.setstate(__err);
}
template<typename _CharT, typename _Traits>

50
libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/12297.cc Normal file
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@ -0,0 +1,50 @@
// Copyright (C) 2003 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
// 27.6.1.1.2 class basic_istream::sentry
#include <sstream>
#include <testsuite_hooks.h>
int main()
{
using namespace std;
istringstream stream;
stream.exceptions(ios_base::eofbit);
try
{
istream::sentry sentry(stream, false);
VERIFY( false );
}
catch (ios_base::failure&)
{
VERIFY( stream.rdstate() == (ios_base::eofbit | ios_base::failbit) );
}
return 0;
}