commit ae6f1d8b14c2f63811ee83ef14e32086fb3e9b83
author kylo252 <59826753+kylo252@users.noreply.github.com> Wed Feb 16 19:24:07 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Wed Feb 16 19:24:07 2022 +0000
tree 4982335c2afa3ef8515860dabea038acbc2af406
parent d288eaad846f0e07e0141226f97d858dcf96cb78

patch 8.2.4402: missing parenthesis may cause unexpected problems

Problem:    Missing parenthesis may cause unexpected problems.
Solution:   Add more parenthesis is macros. (closes #9788)

src/regexp.c

diff --git a/src/regexp.c b/src/regexp.c
index 81ca514..110d76d 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -247,15 +247,15 @@
     done = TRUE;
 }
 
-#define ri_digit(c)	(c < 0x100 && (class_tab[c] & RI_DIGIT))
-#define ri_hex(c)	(c < 0x100 && (class_tab[c] & RI_HEX))
-#define ri_octal(c)	(c < 0x100 && (class_tab[c] & RI_OCTAL))
-#define ri_word(c)	(c < 0x100 && (class_tab[c] & RI_WORD))
-#define ri_head(c)	(c < 0x100 && (class_tab[c] & RI_HEAD))
-#define ri_alpha(c)	(c < 0x100 && (class_tab[c] & RI_ALPHA))
-#define ri_lower(c)	(c < 0x100 && (class_tab[c] & RI_LOWER))
-#define ri_upper(c)	(c < 0x100 && (class_tab[c] & RI_UPPER))
-#define ri_white(c)	(c < 0x100 && (class_tab[c] & RI_WHITE))
+#define ri_digit(c)	((c) < 0x100 && (class_tab[c] & RI_DIGIT))
+#define ri_hex(c)	((c) < 0x100 && (class_tab[c] & RI_HEX))
+#define ri_octal(c)	((c) < 0x100 && (class_tab[c] & RI_OCTAL))
+#define ri_word(c)	((c) < 0x100 && (class_tab[c] & RI_WORD))
+#define ri_head(c)	((c) < 0x100 && (class_tab[c] & RI_HEAD))
+#define ri_alpha(c)	((c) < 0x100 && (class_tab[c] & RI_ALPHA))
+#define ri_lower(c)	((c) < 0x100 && (class_tab[c] & RI_LOWER))
+#define ri_upper(c)	((c) < 0x100 && (class_tab[c] & RI_UPPER))
+#define ri_white(c)	((c) < 0x100 && (class_tab[c] & RI_WHITE))
 
 // flags for regflags
 #define RF_ICASE    1	// ignore case