1 // RUN: %clang_cc1 -x c -fsyntax-only -verify -Wenum-compare-conditional %s 2 // RUN: %clang_cc1 -x c++ -fsyntax-only -verify -Wenum-compare-conditional %s 3 4 enum ro { A = 0x10 }; 5 enum rw { B = 0xFF }; 6 enum { C = 0x1A}; 7 8 enum { 9 STATUS_SUCCESS, 10 STATUS_FAILURE, 11 MAX_BASE_STATUS_CODE 12 }; 13 14 enum ExtendedStatusCodes { 15 STATUS_SOMETHING_INTERESTING = MAX_BASE_STATUS_CODE + 1000, 16 }; 17 18 get_flag(int cond)19int get_flag(int cond) { 20 return cond ? A : B; 21 #ifdef __cplusplus 22 // expected-warning@-2 {{conditional expression between different enumeration types ('ro' and 'rw')}} 23 #else 24 // expected-no-diagnostics 25 #endif 26 } 27 28 // In the following cases we purposefully differ from GCC and dont warn because 29 // this code pattern is quite sensitive and we dont want to produce so many false positives. 30 get_flag_anon_enum(int cond)31int get_flag_anon_enum(int cond) { 32 return cond ? A : C; 33 } 34 foo(int c)35int foo(int c) { 36 return c ? STATUS_SOMETHING_INTERESTING : STATUS_SUCCESS; 37 } 38