* encoding.c: parenthesize macro arguments.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30181 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Sun Dec 12 11:53:24 2010  Tanaka Akira  <akr@fsij.org>
+
+	* encoding.c: parenthesize macro arguments.
+
 Sun Dec 12 04:01:58 2010  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* string.c (rb_str_inspect): fix: extra back slash is added when

error.c

@@ -30,7 +30,7 @@ extern const char ruby_description[];
 static const char *
 rb_strerrno(int err)
 {
-#define defined_error(name, num) if (err == num) return name;
+#define defined_error(name, num) if (err == (num)) return (name);
 #define undefined_error(name)
 #include "known_errors.inc"
 #undef defined_error
@@ -1619,8 +1619,8 @@ void
 Init_syserr(void)
 {
     rb_eNOERROR = set_syserr(0, "NOERROR");
-#define defined_error(name, num) set_syserr(num, name);
-#define undefined_error(name) set_syserr(0, name);
+#define defined_error(name, num) set_syserr((num), (name));
+#define undefined_error(name) set_syserr(0, (name));
 #include "known_errors.inc"
 #undef defined_error
 #undef undefined_error