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