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/* RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -verify
*/
/* PR3937 */
#define zero() 0
#define one(x) 0
#define two(x, y) 0
#define zero_dot(...) 0 /* expected-warning {{variadic macros were introduced in C99}} */
#define one_dot(x, ...) 0 /* expected-warning {{variadic macros were introduced in C99}} */
zero()
zero(1); /* expected-error {{too many arguments provided to function-like macro invocation}} */
zero(1, 2, 3); /* expected-error {{too many arguments provided to function-like macro invocation}} */
one() /* ok */
one(a)
one(a,) /* expected-error {{too many arguments provided to function-like macro invocation}} */
one(a, b) /* expected-error {{too many arguments provided to function-like macro invocation}} */
two() /* expected-error {{too few arguments provided to function-like macro invocation}} */
two(a) /* expected-error {{too few arguments provided to function-like macro invocation}} */
two(a,b)
two(a, ) /* expected-warning {{empty macro arguments were standardized in C99}} */
two(a,b,c) /* expected-error {{too many arguments provided to function-like macro invocation}} */
two(
, /* expected-warning {{empty macro arguments were standardized in C99}} */
, /* expected-warning {{empty macro arguments were standardized in C99}} \
expected-error {{too many arguments provided to function-like macro invocation}} */
)
two(,) /* expected-warning 2 {{empty macro arguments were standardized in C99}} */
/* PR4006 & rdar://6807000 */
#define e(...) __VA_ARGS__ /* expected-warning {{variadic macros were introduced in C99}} */
e(x)
e()
zero_dot()
one_dot(x) /* empty ... argument: expected-warning {{varargs argument missing, but tolerated as an extension}} */
one_dot() /* empty first argument, elided ...: expected-warning {{varargs argument missing, but tolerated as an extension}} */
/* rdar://6816766 - Crash with function-like macro test at end of directive. */
#define E() (i == 0)
#if E
#endif
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