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/* { dg-do run } */

/* { dg-options "-std=c99" } */

/* First two tests sourced from a bug report of Thomas Pornin.

   Varargs test source Jamie Lokier.

   All adapted for the testsuite by Neil Booth, Oct 2000.  */

/* Tests various macro abuse is correctly expanded.  */

static int d = 4;

#define c(x) d

#define d(x) c(2)

#if 0

/* This macro chain above sucks up the whole file once it starts, so

   I've commented it out.  The example is left for idle amusement :-) */

#define a(x) b(

#define b(x) a(

#endif

#define apply(...)   apply2 (__VA_ARGS__)  

#define half(x)      ((x) / 2)

#define apply2(f,x)  f (x)

extern void abort (void);

extern void exit (int);

int main()

{

  /* Expands to c(2) then d.  */

  if (c(c)(c) != 4)

    abort ();

  if (apply (half, 200) != 100)

    abort ();

  exit (0);

}