1 /* RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -verify 2 */ 3 /* PR3937 */ 4 #define zero() 0 5 #define one(x) 0 6 #define two(x, y) 0 7 #define zero_dot(...) 0 /* expected-warning {{variadic macros were introduced in C99}} */ 8 #define one_dot(x, ...) 0 /* expected-warning {{variadic macros were introduced in C99}} */ 9 10 zero() 11 zero(1); /* expected-error {{too many arguments provided to function-like macro invocation}} */ 12 zero(1, 2, 3); /* expected-error {{too many arguments provided to function-like macro invocation}} */ 13 14 one() /* ok */ 15 one(a) 16 one(a,) /* expected-error {{too many arguments provided to function-like macro invocation}} */ 17 one(a, b) /* expected-error {{too many arguments provided to function-like macro invocation}} */ 18 19 two() /* expected-error {{too few arguments provided to function-like macro invocation}} */ 20 two(a) /* expected-error {{too few arguments provided to function-like macro invocation}} */ 21 two(a,b) 22 two(a, ) /* expected-warning {{empty macro arguments were standardized in C99}} */ 23 two(a,b,c) /* expected-error {{too many arguments provided to function-like macro invocation}} */ 24 two( 25 , /* expected-warning {{empty macro arguments were standardized in C99}} */ 26 , /* expected-warning {{empty macro arguments were standardized in C99}} \ 27 expected-error {{too many arguments provided to function-like macro invocation}} */ 28 ) 29 two(,) /* expected-warning 2 {{empty macro arguments were standardized in C99}} */ 30 31 32 33 /* PR4006 & rdar://6807000 */ 34 #define e(...) __VA_ARGS__ /* expected-warning {{variadic macros were introduced in C99}} */ 35 e(x) 36 e() 37 38 zero_dot() 39 one_dot(x) /* empty ... argument: expected-warning {{varargs argument missing, but tolerated as an extension}} */ 40 one_dot() /* empty first argument, elided ...: expected-warning {{varargs argument missing, but tolerated as an extension}} */ 41 42 43 /* rdar://6816766 - Crash with function-like macro test at end of directive. */ 44 #define E() (i == 0) 45 #if E 46 #endif 47
