scc

commit 7369e862b993e9e62b153f0101d0866f85d5a485
parent 565ba0922428a7a04198f8d11216309f018d6d50
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Tue,  5 Aug 2014 18:07:31 +0200

Decay expressions in assignop()

assignop() is called in any of the operator where an lvalue is
modified (=, *=, += ...). In this case is necessary decay the
right part of the expression, because in other case we will
generate code of assignment of arrays and functions.

Diffstat:
M
cc1/expr.c
 | 
10
++++++++--

1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/cc1/expr.c b/cc1/expr.c
@@ -329,8 +329,14 @@ iszero(Node *np)
 static Node *
 assignop(char op, Node *np1, Node *np2)
 {
-	if ((np2 = convert(np2, np1->type, 0)) == NULL)
-		error("incompatible types when assigning");
+	switch (np2->type->op) {
+	case FTN: case ARY:
+		np2 = decay(np2);
+		/* PASSTHROUGH */
+	default:
+		if ((np2 = convert(np2, np1->type, 0)) == NULL)
+			error("incompatible types when assigning");
+	}
 	return bincode(op, np1->type, np1, np2);
 }