Let's not overdo the growth.

p4raw-id: //depot/perl@14764

diff --git a/pp.c b/pp.c
index be6d723..f856ea6 100644 (file)
--- a/pp.c
+++ b/pp.c
@@ -3350,8 +3350,10 @@ PP(pp_uc)
            SETs(TARG);
        }
        else {
+           STRLEN nchar = utf8_length(s, s + len);
+
            (void)SvUPGRADE(TARG, SVt_PV);
-           SvGROW(TARG, (len * UTF8_MAXLEN_UCLC) + 1);
+           SvGROW(TARG, (nchar * UTF8_MAXLEN_UCLC) + 1);
            (void)SvPOK_only(TARG);
            d = (U8*)SvPVX(TARG);
            send = s + len;
@@ -3417,8 +3419,10 @@ PP(pp_lc)
            SETs(TARG);
        }
        else {
+           STRLEN nchar = utf8_length(s, s + len);
+
            (void)SvUPGRADE(TARG, SVt_PV);
-           SvGROW(TARG, (len * UTF8_MAXLEN_UCLC) + 1);
+           SvGROW(TARG, (nchar * UTF8_MAXLEN_UCLC) + 1);
            (void)SvPOK_only(TARG);
            d = (U8*)SvPVX(TARG);
            send = s + len;