Subject: Re: bug#18777: [PATCH] dfa: improvement for checking of multibyte character boundary

From: Paul Eggert <[email-masked]>
Date: Thu, 18 Dec 2014 01:40:18 -0800

Norihiro Tanaka wrote:

> if WCP != NULL, we must set a wide character for 0x95 0x5c to WCP before return P.

Why?  The (only) caller with WCP != NULL doesn't use *WCP when skip_remains_mb 
(D, P, ..., WCP) returns P.  So it's OK to not set *WCP in that case.