1/* { dg-do run } */
2/* { dg-options "-std=c99" } */
3
4/* First two tests sourced from a bug report of Thomas Pornin.
5   Varargs test source Jamie Lokier.
6   All adapted for the testsuite by Neil Booth, Oct 2000.  */
7
8/* Tests various macro abuse is correctly expanded.  */
9static int d = 4;
10#define c(x) d
11#define d(x) c(2)
12
13#if 0
14/* This macro chain above sucks up the whole file once it starts, so
15   I've commented it out.  The example is left for idle amusement :-) */
16#define a(x) b(
17#define b(x) a(
18#endif
19
20#define apply(...)   apply2 (__VA_ARGS__)
21#define half(x)      ((x) / 2)
22#define apply2(f,x)  f (x)
23
24extern void abort (void);
25extern void exit (int);
26
27int main()
28{
29  /* Expands to c(2) then d.  */
30  if (c(c)(c) != 4)
31    abort ();
32
33  if (apply (half, 200) != 100)
34    abort ();
35
36  exit (0);
37}
38