enums and ints are compatible

2 files changed, 10 insertions, 0 deletions

diff --git a/tccgen.c b/tccgen.c
index aafea36..7c8bc32 100644
--- a/tccgen.c
+++ b/tccgen.c
@@ -2565,6 +2565,14 @@ static int compare_types(CType *type1, CType *type2, int unqualified)
         t1 &= ~VT_DEFSIGN;
         t2 &= ~VT_DEFSIGN;
     }
+    if ((t1 & VT_BTYPE) == VT_ENUM) {
+	/* An enum is compatible with (unsigned) int.  */
+	t1 = VT_INT | (t1 & ~VT_BTYPE);
+    }
+    if ((t2 & VT_BTYPE) == VT_ENUM) {
+	/* An enum is compatible with (unsigned) int.  */
+	t2 = VT_INT | (t2 & ~VT_BTYPE);
+    }
     /* XXX: bitfields ? */
     if (t1 != t2)
         return 0;
diff --git a/tests/tcctest.c b/tests/tcctest.c
index 3885b54..a604c4a 100644
--- a/tests/tcctest.c
+++ b/tests/tcctest.c
@@ -590,6 +590,8 @@ enum test {
 void enum_test()
 {
     enum test b1;
+    /* The following should give no warning */
+    int *p = &b1;
     printf("enum:\n%d %d %d %d %d %d\n",
            E0, E1, E2, E3, E4, E5);
     b1 = 1;