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Posted to dev@stdcxx.apache.org by "Martin Sebor (JIRA)" <ji...@apache.org> on 2005/12/09 02:25:08 UTC
[jira] Closed: (STDCXX-70) std::string::operator+=(char) not thread-safe
[ http://issues.apache.org/jira/browse/STDCXX-70?page=all ]
Martin Sebor closed STDCXX-70:
------------------------------
Resolution: Fixed
Fixed with the referenced change.
> std::string::operator+=(char) not thread-safe
> ---------------------------------------------
>
> Key: STDCXX-70
> URL: http://issues.apache.org/jira/browse/STDCXX-70
> Project: STDCXX
> Type: Bug
> Components: 21. Strings
> Versions: 4.1.2
> Environment: all
> Reporter: Martin Sebor
> Assignee: Martin Sebor
> Priority: Blocker
> Fix For: 4.1.3
>
> Discovered with SunPro 5.7 and reproducible also with SunPro 5.6 and gcc 3.4.3 but only on Solaris 10.
> $ cat t.cpp && nice gmake t && ./t
> #include <assert.h>
> #include <pthread.h>
> #include <string>
> const std::string str ("0123456789");
> const std::string expect = str + '*';
> extern "C" void* thread_func (void*)
> {
> for (int i = 0; i < 100000; ++i) {
> std::string s (str);
> s += '*';
> assert (s == expect);
> }
> return 0;
> }
> int main ()
> {
> pthread_t tid [4];
> unsigned i = 0;
> for (i = 0; i != sizeof tid / sizeof *tid; ++i) {
> if (pthread_create (tid + i, 0, thread_func, (void*)0))
> return 1;
> }
> for (i = 0; i != sizeof tid / sizeof *tid; ++i) {
> if (pthread_join (tid [i], 0))
> return 2;
> }
> }
> CC -c -D_RWSTDDEBUG -mt -D_RWSTD_USE_CONFIG -I/build/sebor/sunpro-5.7.j4-15s/include -I/build/sebor/dev/stdlib/include -I/build/sebor/dev/stdlib/examples/include -library=%none -g +w t.cpp
> CC t.o -o t -library=%none -L/build/sebor/sunpro-5.7.j4-15s/lib -mt -L/build/sebor/sunpro-5.7.j4-15s/lib -lstd15s -lm
> Assertion failed: s == expect, file t.cpp, line 13
> Assertion failed: s == expect, file t.cpp, line 13
> Assertion failed: s == expect, file t.cpp, line 13
> Abort (core dumped)
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