Subj : Re: Is std::cerr thread safe
To   : comp.programming.threads
From : nin234
Date : Wed Jul 20 2005 01:01 pm

The earlier code was actually using fprintf to stderr. I am sorry for
the mistake. TYes it is an interleaved output. The program was working
fine when using fprintf. This interleaving  is caused by  std::cerr
call.
What do you mean by that there is no guarantee of atomicity of i/o.
fprintf manpages at least on solaris tell explicitly that it is MT-Safe
with exceptions. So I am assuming that fprintf uses some sort of
locking internally to accomplish this. To rephrase my orginal question.
Why doesn't std::cerr do the same?

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