Article View: gnu.g++.lib.bug
Article #342libg++-2.3 strange bug
From: Martin Junius
Date: Tue, 29 Dec 1992 17:03
Date: Tue, 29 Dec 1992 17:03
44 lines
2325 bytes
2325 bytes
Just noticed a strange bug when redirecting libg++ 2.3 iostream
output to a pipe: OUTPUT GETS LOST! This doesn't happen with
normal output or redirection to a file.
It also doesn't happen at all with libg++ 2.2.
----y.C-----------------------------------------------------------------------
#include <iostream.h>
main()
{
cerr << "Begin test\n";
cerr << "Blah\n";
cerr << "Blah bbbbbbbbbbbbbbb\n";
}
----Compile-------------------------------------------------------------------
Reading specs from /usr/global/lib/gcc-lib/sparc/2.3.3/specs
gcc version 2.3.3
/usr/global/lib/gcc-lib/sparc/2.3.3/cpp -lang-c++ -v -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplus -Dsparc -Dsun -Dunix -D__sparc__ -D__sun__ -D__unix__ -D__sparc -D__sun -D__unix y.C /usr/tmp/cca24756.i
GNU CPP version 2.3.3 (sparc)
/usr/global/lib/gcc-lib/sparc/2.3.3/cc1plus /usr/tmp/cca24756.i -quiet -dumpbase y.cc -version -o /usr/tmp/cca24756.s
GNU C++ version 2.3.3 (sparc) compiled by GNU C version 2.3.3.
as -o /usr/tmp/cca247561.o /usr/tmp/cca24756.s
/usr/global/lib/gcc-lib/sparc/2.3.3/ld -e start -dc -dp /lib/crt0.o -L/usr/global/lib/gcc-lib/sparc/2.3.3 -L/usr/global/lib /usr/tmp/cca247561.o -lg++ -lgcc -lc -lgcc
----Normal output-------------------------------------------------------------
# a.out
Begin test
Blah
Blah bbbbbbbbbbbbbbb
----Redirected output---------------------------------------------------------
# a.out 2>&1 | cat
Begin test
------------------------------------------------------------------------------
Everything after the first line is lost. I'll have a look at it,
just trying to figure out how to debug such a thing. ;-)
Martin
--
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| |___ | Martin Junius FIDO: 2:242/6.1
| | | | | | Communication Networks Internet: mj@dfv.rwth-aachen.de
|_|_|_|@work| Aachen U of Technology Phone: ++49-241-8790220 (voice)
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Newsgroups: gnu.g++.lib.bug Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!dfv.rwth-aachen.DE!mj From: mj@dfv.rwth-aachen.DE (Martin Junius) Subject: libg++-2.3 strange bug Message-ID: <1992Dec29.170317.20721@dfv.rwth-aachen.de> Sender: gnulists@ai.mit.edu Organization: Communication Networks Distribution: gnu Date: Tue, 29 Dec 1992 17:03:17 GMT Approved: bug-lib-g++@prep.ai.mit.edu Lines: 45