1 // RUN: %clang_cc1 %s -Eonly -verify 2 3 // This should not be rejected. 4 #ifdef defined 5 #endif 6 7 8 9 // PR3764 10 11 // This should not produce a redefinition warning. 12 #define FUNC_LIKE(a) (a) 13 #define FUNC_LIKE(a)(a) 14 15 // This either. 16 #define FUNC_LIKE2(a)\ 17 (a) 18 #define FUNC_LIKE2(a) (a) 19 20 // This should. 21 #define FUNC_LIKE3(a) ( a) // expected-note {{previous definition is here}} 22 #define FUNC_LIKE3(a) (a) // expected-warning {{'FUNC_LIKE3' macro redefined}} 23 24 // RUN: %clang_cc1 -fms-extensions -DMS_EXT %s -Eonly -verify 25 #ifndef MS_EXT 26 // This should under C99. 27 #define FUNC_LIKE4(a,b) (a+b) // expected-note {{previous definition is here}} 28 #define FUNC_LIKE4(x,y) (x+y) // expected-warning {{'FUNC_LIKE4' macro redefined}} 29 #else 30 // This shouldn't under MS extensions. 31 #define FUNC_LIKE4(a,b) (a+b) 32 #define FUNC_LIKE4(x,y) (x+y) 33 34 // This should. 35 #define FUNC_LIKE5(a,b) (a+b) // expected-note {{previous definition is here}} 36 #define FUNC_LIKE5(x,y) (y+x) // expected-warning {{'FUNC_LIKE5' macro redefined}} 37 #endif 38