1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 %s -Eonly -verify 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc // This should not be rejected. 4*f4a2713aSLionel Sambuc #ifdef defined 5*f4a2713aSLionel Sambuc #endif 6*f4a2713aSLionel Sambuc 7*f4a2713aSLionel Sambuc 8*f4a2713aSLionel Sambuc 9*f4a2713aSLionel Sambuc // PR3764 10*f4a2713aSLionel Sambuc 11*f4a2713aSLionel Sambuc // This should not produce a redefinition warning. 12*f4a2713aSLionel Sambuc #define FUNC_LIKE(a) (a) 13*f4a2713aSLionel Sambuc #define FUNC_LIKE(a)(a) 14*f4a2713aSLionel Sambuc 15*f4a2713aSLionel Sambuc // This either. 16*f4a2713aSLionel Sambuc #define FUNC_LIKE2(a)\ 17*f4a2713aSLionel Sambuc (a) 18*f4a2713aSLionel Sambuc #define FUNC_LIKE2(a) (a) 19*f4a2713aSLionel Sambuc 20*f4a2713aSLionel Sambuc // This should. 21*f4a2713aSLionel Sambuc #define FUNC_LIKE3(a) ( a) // expected-note {{previous definition is here}} 22*f4a2713aSLionel Sambuc #define FUNC_LIKE3(a) (a) // expected-warning {{'FUNC_LIKE3' macro redefined}} 23*f4a2713aSLionel Sambuc 24*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -fms-extensions -DMS_EXT %s -Eonly -verify 25*f4a2713aSLionel Sambuc #ifndef MS_EXT 26*f4a2713aSLionel Sambuc // This should under C99. 27*f4a2713aSLionel Sambuc #define FUNC_LIKE4(a,b) (a+b) // expected-note {{previous definition is here}} 28*f4a2713aSLionel Sambuc #define FUNC_LIKE4(x,y) (x+y) // expected-warning {{'FUNC_LIKE4' macro redefined}} 29*f4a2713aSLionel Sambuc #else 30*f4a2713aSLionel Sambuc // This shouldn't under MS extensions. 31*f4a2713aSLionel Sambuc #define FUNC_LIKE4(a,b) (a+b) 32*f4a2713aSLionel Sambuc #define FUNC_LIKE4(x,y) (x+y) 33*f4a2713aSLionel Sambuc 34*f4a2713aSLionel Sambuc // This should. 35*f4a2713aSLionel Sambuc #define FUNC_LIKE5(a,b) (a+b) // expected-note {{previous definition is here}} 36*f4a2713aSLionel Sambuc #define FUNC_LIKE5(x,y) (y+x) // expected-warning {{'FUNC_LIKE5' macro redefined}} 37*f4a2713aSLionel Sambuc #endif 38