Dear experts,

As I know strtok_r is re-entrant version of strtok.
strtok_r() is called with s1(lets say) as its first parameter.
Remaining tokens from s1 are obtained by calling strtok_r() with a
null pointer for the first parameter.
My confusion is that this behavior is same as strtok. So I assume
strtok_r must also be using any function static variable to keep the
information about s1. If this is the case then how strtok_r is re-
entrant?
Otherwise how it keeps the information about s1?

Regards,
Siddharth

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Ben Pfaff wrote:
> siddhu <siddharth.sng@gmail.com> writes:
> 
>
> This is true on a system compliant with, e.g., POSIX, but it is
> not required by C.  Followups set.

In addition, all names beginning with 'str' and followed by a lower
case char are reserved to the system.  Thus strtok_r is not an
available name for the user.

--
Chuck F (cbfalconer at maineline dot net)
Available for consulting/temporary embedded and systems.
<http://cbfalconer.home.att.net>



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