4 static enum E1 {} e1, e1b;  variable
11   void(e1 * e1);  in f()
12   void(e1 * e2); // expected-warning {{arithmetic between different enumeration types}}  in f()
13 …void(e1 * d); // expected-warning {{arithmetic between enumeration type 'enum E1' and floating-poi…  in f()
14 …void(d * e1); // expected-warning {{arithmetic between floating-point type 'double' and enumeratio…  in f()
16   void(e1 + e1);  in f()
17   void(e1 + e2); // expected-warning {{arithmetic between different enumeration types}}  in f()
18 …void(e1 + d); // expected-warning {{arithmetic between enumeration type 'enum E1' and floating-poi…  in f()
19 …void(d + e1); // expected-warning {{arithmetic between floating-point type 'double' and enumeratio…  in f()
22   void(e1 <=> e1b); // expected-error {{include <compare>}}  in f()
23   void(e1 <=> e2); // expected-error {{invalid operands}}  in f()
24   void(e1 <=> d); // expected-error {{invalid operands}}  in f()
25   void(d <=> e1); // expected-error {{invalid operands}}  in f()
28   void(e1 < e1b);  in f()
29   void(e1 < e2); // expected-warning {{comparison of different enumeration types}}  in f()
30 …void(e1 < d); // expected-warning {{comparison of enumeration type 'enum E1' with floating-point t…  in f()
31 …void(d < e1); // expected-warning {{comparison of floating-point type 'double' with enumeration ty…  in f()
33   void(e1 == e1b);  in f()
34   void(e1 == e2); // expected-warning {{comparison of different enumeration types}}  in f()
35 …void(e1 == d); // expected-warning {{comparison of enumeration type 'enum E1' with floating-point …  in f()
36 …void(d == e1); // expected-warning {{comparison of floating-point type 'double' with enumeration t…  in f()
38   void(b ? e1 : e1b);  in f()
39 …void(b ? e1 : e2); // expected-warning {{conditional expression between different enumeration type…  in f()
40 …void(b ? e1 : d); // expected-warning {{conditional expression between enumeration type 'enum E1' …  in f()
41 …void(b ? d : e1); // expected-warning {{conditional expression between floating-point type 'double…  in f()
43   void(e1 = e1b);  in f()
44   void(e1 = e2); // expected-error {{incompatible}}  in f()
45   void(e1 = d); // expected-error {{incompatible}}  in f()
46   void(d = e1); // FIXME: Should we warn on this?  in f()
48   void(e1 += e1b); // expected-error {{incompatible}}  in f()
49   void(e1 += e2); // expected-error {{incompatible}}  in f()
50   void(e1 += d); // expected-error {{incompatible}}  in f()
51 …void(d += e1); // expected-warning {{compound assignment of floating-point type 'double' from enum…  in f()