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Posted to dev@stdcxx.apache.org by "Farid Zaripov (JIRA)" <ji...@apache.org> on 2007/06/08 17:31:25 UTC
[jira] Resolved: (STDCXX-427) SIGSEGV in istringstream::str()
[ https://issues.apache.org/jira/browse/STDCXX-427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Farid Zaripov resolved STDCXX-427.
----------------------------------
Resolution: Fixed
Fixed thus: http://svn.apache.org/viewvc?view=rev&rev=545533
> SIGSEGV in istringstream::str()
> -------------------------------
>
> Key: STDCXX-427
> URL: https://issues.apache.org/jira/browse/STDCXX-427
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 27. Input/Output
> Affects Versions: 4.2
> Environment: gcc-3.3.3 on Linux
> Reporter: Martin Sebor
> Assignee: Farid Zaripov
> Priority: Critical
> Fix For: 4.2
>
>
> This only happens on trunk, not with 4.1.3:
> $ rm t.o && cat t.cpp && make t && gdb -q t
> #include <cassert>
> #include <sstream>
> #include <string>
> int main ()
> {
> using namespace std;
> string str ("test");
>
> istringstream isstr;
>
> isstr.str (str);
> assert (isstr.str ().length () == str.length ());
> assert (isstr.str () == str);
> }
> gcc -c -I/amd/devco/sebor/stdcxx/include/ansi -D_RWSTDDEBUG -pthread -I/amd/devco/sebor/stdcxx/include -I/build/sebor/stdcxx-gcc-3.3.3_43.41-15s/include -I/amd/devco/sebor/stdcxx/examples/include -pedantic -nostdinc++ -g -m32 -W -Wall -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align t.cpp
> gcc t.o -o t -pthread -m32 -L/build/sebor/stdcxx-gcc-3.3.3_43.41-15s/lib -lstd15s -lsupc++ -lm
> Using host libthread_db library "/lib64/tls/libthread_db.so.1".
> (gdb) r
> Starting program: /build/sebor/stdcxx-gcc-3.3.3_43.41-15s/examples/t
> [Thread debugging using libthread_db enabled]
> [New Thread 1433271616 (LWP 12696)]
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 1433271616 (LWP 12696)]
> 0x0804eb4c in __rw::__rw_memcpy (dst=0x556e1014, src=0x80900a0,
> nbytes=134672708) at /amd/devco/sebor/stdcxx/src/string.cpp:42
> 42 *tmp++ = *csrc++;
> (gdb) where
> #0 0x0804eb4c in __rw::__rw_memcpy (dst=0x556e1014, src=0x80900a0,
> nbytes=134672708) at /amd/devco/sebor/stdcxx/src/string.cpp:42
> #1 0x08053781 in std::char_traits<char>::copy (__dst=0x556e1014 "test",
> __src=0x80900a0 "test", __n=134807716) at _traits.h:425
> #2 0x080562ec in basic_string (this=0xffffd0d0, __s=0x80900a0 "test",
> __n=134807716, __alloc=@0xffffcfc0) at string.cc:185
> #3 0x0805dac5 in std::basic_stringbuf<char, std::char_traits<char>, std::allocator<char> >::str (this=0xffffd048) at sstream:130
> #4 0x08049bc9 in std::basic_istringstream<char, std::char_traits<char>, std::allocator<char> >::str (this=0xffffd040) at sstream:268
> #5 0x0804994d in main () at t.cpp:15
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