1  /* { dg-do run } */
       2  
       3  /* Regression test for stringizing and token pasting.
       4     We got internal escape markers in the strings.  */
       5  
       6  #include <string.h>
       7  #include <stdlib.h>
       8  
       9  #define S(x) _S(x)
      10  #define _S(x) #x
      11  
      12  #define I 1
      13  static const char s1[] = S(I.1);
      14  static const char t1[] = "1.1";
      15  
      16  #define f h
      17  #define h(a) a+f
      18  static const char s2[] = S( f(1)(2) );
      19  static const char t2[] = "1+h(2)";
      20  
      21  #undef I
      22  #undef f
      23  #undef h
      24  
      25  int
      26  main(void)
      27  {
      28    if (strcmp (s1, t1))
      29      abort ();
      30  
      31    if (strcmp (s2, t2))
      32      abort ();
      33  
      34    return 0;
      35  }