On Fri, 19 Dec 2014 00:54:58 +0900
Norihiro Tanaka <noritnk@kcn.ne.jp> wrote:

> On Thu, 18 Dec 2014 01:40:18 -0800
> Thanks, I understood that you said.  You are right.  I changed the patch
> so that always_character_boundary is not pruned even if WCP != NULL, and
> fixed the API document.

I fixed a mismatch with the comment.  It does not changes the behavior.
We expect that skip_remains_mb() is inlined, and "*WCP = WC" is merged
into "IF (P < MBP)" in caller.

--
+   exceeds P.  If WCP is non-NULL and the result is greater than p, set
+   *WCP to the final wide character processed, or if no wide character
+   is processed, set it to WEOF.  Both P and MBP must be no larger than
+   END.
    ........
-  if (wcp != NULL)
+  if (wcp != NULL && p < mbp)