1 // RUN: %clang_cc1 %s -Eonly -verify 2 3 // This should not be rejected. 4 #ifdef defined 5 #elifdef defined 6 #endif 7 // expected-warning@-2 {{use of a '#elifdef' directive is a C23 extension}} 8 9 10 11 // PR3764 12 13 // This should not produce a redefinition warning. 14 #define FUNC_LIKE(a) (a) 15 #define FUNC_LIKE(a)(a) 16 17 // This either. 18 #define FUNC_LIKE2(a)\ 19 (a) 20 #define FUNC_LIKE2(a) (a) 21 22 // This should. 23 #define FUNC_LIKE3(a) ( a) // expected-note {{previous definition is here}} 24 #define FUNC_LIKE3(a) (a) // expected-warning {{'FUNC_LIKE3' macro redefined}} 25 26 // RUN: %clang_cc1 -fms-extensions -DMS_EXT %s -Eonly -verify 27 #ifndef MS_EXT 28 // This should under C99. 29 #define FUNC_LIKE4(a,b) (a+b) // expected-note {{previous definition is here}} 30 #define FUNC_LIKE4(x,y) (x+y) // expected-warning {{'FUNC_LIKE4' macro redefined}} 31 #else 32 // This shouldn't under MS extensions. 33 #define FUNC_LIKE4(a,b) (a+b) 34 #define FUNC_LIKE4(x,y) (x+y) 35 36 // This should. 37 #define FUNC_LIKE5(a,b) (a+b) // expected-note {{previous definition is here}} 38 #define FUNC_LIKE5(x,y) (y+x) // expected-warning {{'FUNC_LIKE5' macro redefined}} 39 #endif 40