From: Jarkko Hietaniemi <jhi@iki.fi>
Date: Wed, 10 Sep 2003 08:02:55 +0000 (+0000)
Subject: If doing rcatline no point rescanning each time
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=86173d902c03e4de5d1e5e2acd88d8a6bb5a0015;p=p5sagit%2Fp5-mst-13.2.git

If doing rcatline no point rescanning each time
the beginning of the SV for utf8 validity.

p4raw-id: //depot/perl@21155
---

diff --git a/pp_hot.c b/pp_hot.c
index 1de483c..0c4c692 100644
--- a/pp_hot.c
+++ b/pp_hot.c
@@ -1570,10 +1570,12 @@ Perl_do_readline(pTHX)
 	    RETURN;
 	}
 	if (SvUTF8(sv)) {
+	     U8 *s = (U8*)SvPVX(sv) + offset;
+	     STRLEN len = SvCUR(sv) - offset;
 	     U8 *f;
 
 	     if (ckWARN(WARN_UTF8) &&
-		 !Perl_is_utf8_string_loc(aTHX_ (U8*)SvPVX(sv), SvCUR(sv), &f))
+		 !Perl_is_utf8_string_loc(aTHX_ s, len, &f))
 		  /* Emulate :encoding(utf8) warning in the same case. */
 		  Perl_warner(aTHX_ packWARN(WARN_UTF8),
 			      "utf8 \"\\x%02X\" does not map to Unicode",