X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=utf8.h;h=659319e82d68f91f9ad2eecb32f1687e6878e21d;hb=133fac12ff7e3894deb31a204a9a12453b87bbf0;hp=0b3dc6a826ebc6dcf81d02d8495b90017020a69d;hpb=83706693c63eb4fe0fd171a88263c83548c89029;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/utf8.h b/utf8.h
index 0b3dc6a..659319e 100644
--- a/utf8.h
+++ b/utf8.h
@@ -118,8 +118,8 @@ encoded character.
 #define UTF8_IS_CONTINUED(c) 		(((U8)c) &  0x80)
 #define UTF8_IS_DOWNGRADEABLE_START(c)	(((U8)c & 0xfc) == 0xc0)
 
-#define UTF_START_MARK(len) ((len >  7) ? 0xFF : (0xFE << (7-len)))
-#define UTF_START_MASK(len) ((len >= 7) ? 0x00 : (0x1F >> (len-2)))
+#define UTF_START_MARK(len) (((len) >  7) ? 0xFF : (0xFE << (7-(len))))
+#define UTF_START_MASK(len) (((len) >= 7) ? 0x00 : (0x1F >> ((len)-2)))
 
 #define UTF_CONTINUATION_MARK		0x80
 #define UTF_ACCUMULATION_SHIFT		6