Fix bug in duplicate case value checker: Ignore the default case label.

[r21628]

diff --git a/parser.c b/parser.c
index 45d0d8e..799fa7b 100644 (file)
--- a/parser.c
+++ b/parser.c
@@ -8256,7 +8256,7 @@ static statement_t *parse_case_statement(void)
                        /* Check for duplicate case values */
                        case_label_statement_t *c = &statement->case_label;
                        for (case_label_statement_t *l = current_switch->first_case; l != NULL; l = l->next) {
-                               if (l->is_bad || l->is_empty)
+                               if (l->is_bad || l->is_empty || l->expression == NULL)
                                        continue;
 
                                if (c->last_case < l->first_case || c->first_case > l->last_case)