1/* { dg-do run } */ 2 3/* Test for odd corner cases in stringizing/pasting. 4 Taken more or less verbatim from C99 section 6.10.3.3. */ 5 6#include <stdlib.h> 7#include <string.h> 8 9#define hash_hash # ## # 10#define mkstr(a) # a 11#define in_between(a) mkstr(a) 12#define join(c, d) in_between(c hash_hash d) 13 14const char p[] = join(x, y); 15const char q[] = "x ## y"; 16 17int 18main (void) 19{ 20 if (strcmp (p, q)) 21 abort (); 22 return 0; 23} 24