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/* RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -verify
*/
// RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -Wno-gnu-zero-variadic-macro-arguments -verify -DOMIT_VARIADIC_MACRO_ARGS -DVARIADIC_MACRO_ARGS_REMOVE_COMMA
// RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -Wno-variadic-macro-arguments-omitted -verify -DOMIT_VARIADIC_MACRO_ARGS
/* PR3937 */
#define zero() 0 /* expected-note 2 {{defined here}} */
#define one(x) 0 /* expected-note 2 {{defined here}} */
#define two(x, y) 0 /* expected-note 4 {{defined here}} */
#define zero_dot(...) 0 /* expected-warning {{variadic macros are a C99 feature}} */
#define one_dot(x, ...) 0 /* expected-warning {{variadic macros are a C99 feature}} */
#ifndef OMIT_VARIADIC_MACRO_ARGS
/* expected-note@-3 2{{macro 'one_dot' defined here}} */
#endif
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}} \
expected-warning {{empty macro arguments are a C99 feature}}*/
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 are a C99 feature}} */
two(a,b,c) /* expected-error {{too many arguments provided to function-like macro invocation}} */
two(
, /* expected-warning {{empty macro arguments are a C99 feature}} */
, /* expected-warning {{empty macro arguments are a C99 feature}} \
expected-error {{too many arguments provided to function-like macro invocation}} */
) /* expected-warning {{empty macro arguments are a C99 feature}} */
two(,) /* expected-warning 2 {{empty macro arguments are a C99 feature}} */
/* PR4006 */
#define e(...) __VA_ARGS__ /* expected-warning {{variadic macros are a C99 feature}} */
e(x)
e()
zero_dot()
one_dot(x) /* empty ... argument */
one_dot() /* empty first argument, elided ... */
#ifndef OMIT_VARIADIC_MACRO_ARGS
/* expected-warning@-4 {{passing no argument for the '...' parameter of a variadic macro is a C23 extension}} */
/* expected-warning@-4 {{passing no argument for the '...' parameter of a variadic macro is a C23 extension}} */
#endif
/* Crash with function-like macro test at end of directive. */
#define E() (i == 0)
#if E
#endif
#define NSAssert(condition, desc, ...) /* expected-warning {{variadic macros are a C99 feature}} */ \
SomeComplicatedStuff((desc), ##__VA_ARGS__)
#ifndef VARIADIC_MACRO_ARGS_REMOVE_COMMA
/* expected-warning@-3 {{token pasting of ',' and __VA_ARGS__ is a GNU extension}} */
#endif
NSAssert(somecond, somedesc)
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