1*67e74705SXin Li /* RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -verify 2*67e74705SXin Li */ 3*67e74705SXin Li /* PR3937 */ 4*67e74705SXin Li #define zero() 0 /* expected-note 2 {{defined here}} */ 5*67e74705SXin Li #define one(x) 0 /* expected-note 2 {{defined here}} */ 6*67e74705SXin Li #define two(x, y) 0 /* expected-note 4 {{defined here}} */ 7*67e74705SXin Li #define zero_dot(...) 0 /* expected-warning {{variadic macros are a C99 feature}} */ 8*67e74705SXin Li #define one_dot(x, ...) 0 /* expected-warning {{variadic macros are a C99 feature}} expected-note 2{{macro 'one_dot' defined here}} */ 9*67e74705SXin Li 10*67e74705SXin Li zero() 11*67e74705SXin Li zero(1); /* expected-error {{too many arguments provided to function-like macro invocation}} */ 12*67e74705SXin Li zero(1, 2, 3); /* expected-error {{too many arguments provided to function-like macro invocation}} */ 13*67e74705SXin Li 14*67e74705SXin Li one() /* ok */ 15*67e74705SXin Li one(a) 16*67e74705SXin Li one(a,) /* expected-error {{too many arguments provided to function-like macro invocation}} \ 17*67e74705SXin Li expected-warning {{empty macro arguments are a C99 feature}}*/ 18*67e74705SXin Li one(a, b) /* expected-error {{too many arguments provided to function-like macro invocation}} */ 19*67e74705SXin Li 20*67e74705SXin Li two() /* expected-error {{too few arguments provided to function-like macro invocation}} */ 21*67e74705SXin Li two(a) /* expected-error {{too few arguments provided to function-like macro invocation}} */ 22*67e74705SXin Li two(a,b) 23*67e74705SXin Li two(a, ) /* expected-warning {{empty macro arguments are a C99 feature}} */ 24*67e74705SXin Li two(a,b,c) /* expected-error {{too many arguments provided to function-like macro invocation}} */ 25*67e74705SXin Li two( 26*67e74705SXin Li , /* expected-warning {{empty macro arguments are a C99 feature}} */ 27*67e74705SXin Li , /* expected-warning {{empty macro arguments are a C99 feature}} \ 28*67e74705SXin Li expected-error {{too many arguments provided to function-like macro invocation}} */ 29*67e74705SXin Li ) /* expected-warning {{empty macro arguments are a C99 feature}} */ 30*67e74705SXin Li two(,) /* expected-warning 2 {{empty macro arguments are a C99 feature}} */ 31*67e74705SXin Li 32*67e74705SXin Li 33*67e74705SXin Li 34*67e74705SXin Li /* PR4006 & rdar://6807000 */ 35*67e74705SXin Li #define e(...) __VA_ARGS__ /* expected-warning {{variadic macros are a C99 feature}} */ 36*67e74705SXin Li e(x) 37*67e74705SXin Li e() 38*67e74705SXin Li 39*67e74705SXin Li zero_dot() 40*67e74705SXin Li one_dot(x) /* empty ... argument: expected-warning {{must specify at least one argument for '...' parameter of variadic macro}} */ 41*67e74705SXin Li one_dot() /* empty first argument, elided ...: expected-warning {{must specify at least one argument for '...' parameter of variadic macro}} */ 42*67e74705SXin Li 43*67e74705SXin Li 44*67e74705SXin Li /* rdar://6816766 - Crash with function-like macro test at end of directive. */ 45*67e74705SXin Li #define E() (i == 0) 46*67e74705SXin Li #if E 47*67e74705SXin Li #endif 48*67e74705SXin Li 49*67e74705SXin Li 50*67e74705SXin Li /* <rdar://problem/12292192> */ 51*67e74705SXin Li #define NSAssert(condition, desc, ...) /* expected-warning {{variadic macros are a C99 feature}} */ \ 52*67e74705SXin Li SomeComplicatedStuff((desc), ##__VA_ARGS__) /* expected-warning {{token pasting of ',' and __VA_ARGS__ is a GNU extension}} */ 53*67e74705SXin Li NSAssert(somecond, somedesc) 54