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/* { dg-do run } */
/* Test for odd corner cases in stringizing/pasting.
Taken more or less verbatim from C99 section 6.10.3.3. */
#include <stdlib.h>
#include <string.h>
#define hash_hash # ## #
#define mkstr(a) # a
#define in_between(a) mkstr(a)
#define join(c, d) in_between(c hash_hash d)
const char p[] = join(x, y);
const char q[] = "x ## y";
int
main (void)
{
if (strcmp (p, q))
abort ();
return 0;
}
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