Date: Mon, 1 Oct 2001 06:34:18 -0700 (PDT) From: Ravindra Rathi <ravindra_rathi@yahoo.com> To: freebsd-net@FreeBSD.ORG Cc: ravindra_rathi@yahoo.com Subject: doubt in radix.c source-code Message-ID: <20011001133418.97976.qmail@web12302.mail.yahoo.com>
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Hi all,
I am going through the function
int
rn_walktree (register struct radix_node *rn,
rn_walk_function f, ...)
defined in radix.c file. I have doubt about following
while loop in that function.
/* If at right child go back up, otherwise, go right
*/
while (rn->rn_p->rn_r == rn && (rn->rn_flags &
RNF_ROOT) == 0)
rn = rn->rn_p;
Looking at the complete function, I think
(rn->rn_flags & RNF_ROOT) == 0
check in above while loop is unnecessary. I say this
because of following lines down below in the function.
if (rn->rn_flags & RNF_ROOT) {
return (0);
}
Am I missing anything? Any insight...?
TIA,
Rathi
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