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re PR libstdc++/6414 (g++ 3.1 tellg() regression within last week)

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PR libstdc++/6414
        * include/bits/fstream.tcc (basic_filebuf::seekoff): Adjust return
        value properly in the trivial case.
        * testsuite/27_io/istream_seeks.cc (test04): Make sure that
        tellg() returns the right value after a read.

From-SVN: r52679
This commit is contained in:
Jason Merrill 2002-04-23 17:01:22 -04:00 committed by Jason Merrill
parent 29cece2e5d
commit 74c263af80
3 changed files with 17 additions and 2 deletions
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8
libstdc++-v3/ChangeLog
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@ -1,3 +1,11 @@
2002-04-23 Jason Merrill <jason@redhat.com>
PR libstdc++/6414
* include/bits/fstream.tcc (basic_filebuf::seekoff): Adjust return
value properly in the trivial case.
* testsuite/27_io/istream_seeks.cc (test04): Make sure that
tellg() returns the right value after a read.
2002-04-23 Hans-Peter Nilsson <hp@bitrange.com>
* config/cpu/mmix/bits/cpu_limits.h: New file.

2
libstdc++-v3/include/bits/fstream.tcc
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@ -567,7 +567,7 @@ namespace std
else
{
__ret = _M_file.seekoff(__off, ios_base::cur, __mode);
__ret += max(_M_out_cur, _M_in_cur) - _M_buf;
__ret += _M_in_cur - _M_filepos;
}
}
_M_last_overflowed = false;

9
libstdc++-v3/testsuite/27_io/istream_seeks.cc
View File

@ -229,7 +229,14 @@ void test04(void)
VERIFY( pos05 == pos06 + off_type(10) );
VERIFY( state01 == state02 );
pos06 = is03.tellg();
VERIFY( pos05 == pos06 );
VERIFY( pos05 == pos06 );
// libstdc++/6414
if01.seekg(0, std::ios_base::beg);
pos01 = if01.tellg();
if01.peek();
pos02 = if01.tellg();
VERIFY( pos02 == pos01 );
#ifdef DEBUG_ASSERT
assert(test);