[RFC] Should strtok_r be preferred to strtok?

[Ulrich Drepper]

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Paolo Carlini wrote:
> Hi,
> 
> Wolfgang Bangerth, in private mail, pointed my attention to the the
> issue of thread-safety for strtok(), which I blatantly used in the
> rewrite of locale::_Impl::_Impl(const char* __s, size_t __refs) for
> thread safe :-( Posix localenames...
> 
> Should we autoconf for strtok_r and prefer it when available?

You definitely must not use strtok.

Check for strtok_r (which is POSIX) or strsep (also in glibc).  Which
one you pick depends on your personal preferences.

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