1 // RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -Wenum-conversion -verify %s
2 // RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -Wconversion -verify %s
3 
4 // Signed enums
5 enum SE1 { N1 = -1 };
6 enum SE2 { N2 = -2 };
7 // Unsigned unums
8 enum UE1 { P1 };
9 enum UE2 { P2 };
10 
11 enum UE2 f1(enum UE1 E) {
12   return E; // expected-warning {{implicit conversion from enumeration type 'enum UE1' to different enumeration type 'enum UE2'}}
13 }
14 
15 enum SE1 f2(enum UE1 E) {
16   return E; // expected-warning {{implicit conversion from enumeration type 'enum UE1' to different enumeration type 'enum SE1'}}
17 }
18 
19 enum UE1 f3(enum SE1 E) {
20   return E; // expected-warning {{implicit conversion from enumeration type 'enum SE1' to different enumeration type 'enum UE1'}}
21 }
22 
23 enum SE2 f4(enum SE1 E) {
24   return E; // expected-warning {{implicit conversion from enumeration type 'enum SE1' to different enumeration type 'enum SE2'}}
25 }
26