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Subject:	RE: RE: input stream crash with gcc 3.1
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Date:	Tue, 19 Mar 2002 14:47:42 +1100
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From:	"Billinghurst, David (CRTS)" <David DOT Billinghurst AT riotinto DOT com>
To:	"Dylan Cuthbert" <dylan AT q-games DOT com>,
	"Danny Smith" <danny_r_smith_2001 AT yahoo DOT co DOT nz>,
	"Cygwin AT Cygwin. Com" <cygwin AT cygwin DOT com>
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I just tried this too. Same result.  I have been chasing (without success) some libstdc++-v3 testsuite failures that are similar.  That discusion is on the libstdc++ mailing list.   The advice was to try recompiling libtsdc++-v3 with CXXFLAGS="-g -O0" and use the debugger.  This got me a little further into the code.  

-----Original Message-----
From: Dylan Cuthbert [mailto:dylan AT q-games DOT com]
Sent: Tuesday, 19 March 2002 2:11 
To: Danny Smith; Cygwin AT Cygwin. Com
Subject: Re: RE: input stream crash with gcc 3.1


I tried this #define (in the newlib bits directory - cygwin uses newlib
right?), reconfigured and recompiled gcc 3.1, but the same problem occurs -
segmentation fault on the simplest bit of code that uses cin or ifstream or
stringstream.  ( cout etc. works fine by the way).

I'll repeat the code snippet for clarification:

main()
{
std::string frog;
std::cin >> frog;
assert( 0 );
}

(it doesn't get to the assert and segment faults)

Any other ideas? :-/

---------------------------------
Q-Games, Dylan Cuthbert.
http://www.q-games.com/personal/utils

----- Original Message -----
From: "Danny Smith" <danny_r_smith_2001 AT yahoo DOT co DOT nz>
To: <dylan AT q-games DOT com>
Sent: Tuesday, March 19, 2002 8:08 AM
Subject: Fwd: RE: input stream crash with gcc 3.1


> > From: Danny Smith <danny_r_smith_2001 AT yahoo DOT co DOT nz>
> > Subject: RE: input stream crash with gcc 3.1
> > To: dylan AT nospamq-games DOT com
> > CC: cygwin AT cygwin DOT com
> >
> > > I have recently compiled the latest 3.1 branch (grabbed directly via
> > cvs)
> > > for cygwin (1.3.9) and am having problems when using anything related
> > at
> > > all
> > > to input streams.
> >
> > See this:
> > http://gcc.gnu.org/ml/gcc-patches/2001-06/msg00841.html
> > then try rebuilding libstdc++ with
> >
> > #define _GLIBCPP_AVOID_FSEEK
> > added to /libstdc++-v3/config/os/newlib/bits/os_defines.h
> >
> > Danny
> >
> > http://movies.yahoo.com.au - Yahoo! Movies
> > - Vote for your nominees in our online Oscars pool.
> >
>
> http://movies.yahoo.com.au - Yahoo! Movies
> - Vote for your nominees in our online Oscars pool.


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