shithub: scc

Info  •  Files  •  Log  •  Branches

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.

--- a/cc1/stmt.c

+++ b/cc1/stmt.c

@@ -217,9 +217,14 @@

 	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);