[Bug libstdc++/55917] Impossible to find/debug unhandled exceptions in an std::thread

[yuri.aksenov at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55917

--- Comment #10 from Yuri Aksenov <yuri.aksenov at gmail dot com> ---
OK, [thread.thread.constr]/4 says:
> If the invocation of INVOKE(decay_copy( std::forward<F>(f)), 
> decay_copy(std::forward<Args>(args))...) terminates with an uncaught exception, 
> std::terminate shall be called.

And [except.handle]/9 says:
> If no matching handler is found, the function std::terminate() is called

So we don't need to set default handler unless there is bug in implementation
of [except.handle]/9

I have tested std::thread with removed catch(...) for both -m32 and -m64
environments on
gcc version 4.7.1 20120723 [gcc-4_7-branch revision 189773] (SUSE Linux) 
Target: x86_64-suse-linux

And I can test it on
Target: armv5b-softfloat-linux

But I can not be shure for any possible target