scc

commit 8f1d626650ad8f6c77a6fdc12a8e49d35a7ca77e
parent 0ee2df022f9a2b54b708960f23be30580b2b7c77
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Mon, 27 Jul 2015 12:21:04 +0200

Allow enum variables in switch expressions

enum variables have a different type, but they are integer
for everything, so they should be accepted in switches.

Diffstat:
M
cc1/stmt.c
 | 
9
+++++++--

1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/cc1/stmt.c b/cc1/stmt.c
@@ -217,9 +217,14 @@ Switch(Symbol *lbreak, Symbol *lcont, Caselist *lswitch)
 	expect(SWITCH);
 	expect ('(');
 	cond = expr();
-	if (BTYPE(cond) != INT)
+	switch (BTYPE(cond)) {
+	case INT:
+	case ENUM:
+		cond = convert(cond, inttype, 0);
+		break;
+	default:
 		error("incorrect type in switch statement");
-	cond = convert(cond, inttype, 0);
+	}
 	expect (')');
 
 	lbreak = newsym(NS_LABEL);