1  /* { dg-do run } */
       2  /* { dg-options "-ansi" } */
       3  
       4  extern void abort (void);
       5  
       6  /* Basic tests for trigraph conversion.
       7     All of them are here, but not in all possible contexts.  *??/
       8  /
       9  
      10  ??=include <stdio.h>
      11  
      12  ??=define TWELVE 1??/
      13  2
      14  
      15  static const char str??(??) = "0123456789??/n";
      16  
      17  int
      18  main(void)
      19  ??<
      20    unsigned char x = 5;
      21  
      22    if (sizeof str != TWELVE)
      23      abort ();
      24  
      25    /* Test ^=, the only multi-character token to come from trigraphs.  */
      26    x ??'= 3;
      27    if (x != 6)
      28      abort ();
      29  
      30    if ((5 ??! 3) != 7)
      31      abort ();
      32  
      33    return 0;
      34  ??>