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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (STDCXX-251) SIGABRT in std::streambuf::sbumpc() in unbuffered input mode
Date Fri, 30 Jun 2006 23:34:30 GMT
     [ http://issues.apache.org/jira/browse/STDCXX-251?page=all ]
     
Martin Sebor resolved STDCXX-251:
---------------------------------

    Resolution: Fixed

Fixed with the referenced changes.

> SIGABRT in std::streambuf::sbumpc() in unbuffered input mode
> ------------------------------------------------------------
>
>          Key: STDCXX-251
>          URL: http://issues.apache.org/jira/browse/STDCXX-251
>      Project: C++ Standard Library
>         Type: Bug

>   Components: 27. Input/Output
>     Versions: 4.1.2, 4.1.3
>  Environment: all
>     Reporter: Martin Sebor
>     Assignee: Martin Sebor
>      Fix For: 4.2

>
> The program below dumps core:
> $ cat t.cpp && gmake t && ./t
> #include <cassert>
> #include <cstdio>
> #include <istream>
> #include <string>
> int main ()
> {
>     struct: std::streambuf {
>         int_type underflow () {
>             return 'x';
>         }
>     } buf;
>     buf.sgetc ();
>     buf.sbumpc ();
> }
> aCC -c -I/nfs/devco/sebor/dev/stdlib/include/ansi -I/usr/include  -D_RWSTDDEBUG    -D_RWSTD_USE_CONFIG
-I/nfs/devco/sebor/dev/stdlib/include -I/build/sebor/aCC-3.27-11s/include -I/nfs/devco/sebor/dev/stdlib/examples/include
 -Aa +nostl  -g +d  +w +W392 +W655 +W684 +W818 +W819 +W849 +W229 +W361  t.cpp
> aCC t.o -o t -Aa +nostl -Wl,+s -Wl,+vnocompatwarnings -L/build/sebor/aCC-3.27-11s/lib
   -L/build/sebor/aCC-3.27-11s/lib -lstd11s   -lm
> /nfs/devco/sebor/dev/stdlib/include/streambuf:432: int std::basic_streambuf<char,std::char_traits<char>
>::uflow(): Assertion '0 != _C_gptr' failed.
> ( 0)  0x000087d4   __rw_assert_fail__4__rwFPCcT1iT1 + 0x7c  [././t]
> ( 1)  0x000083a8   uflow__Q2_3std15basic_streambufXTcTQ2_3std11char_traitsXTc__Fv + 0xa8
 [././t]
> ( 2)  0x00007778   sbumpc__Q2_3std15basic_streambufXTcTQ2_3std11char_traitsXTc__Fv +
0x7c  [././t]
> ( 3)  0x000075d4   main + 0x2c  [././t]
> ( 4)  0xc013e8fc   _start + 0xc8  [/usr/lib/libc.2]
> ( 5)  0x000064c0   $START$ + 0x178  [././t]
> ABORT instruction (core dumped)

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