gnu/dist/gcc4/gcc/testsuite/gcc.dg/cpp/strify4.c

   1 /* { dg-do run } */
   2 /* Tests we stringify without changing unprintable characts.
   3
   4    Andrew Pinski */
   5
   6 extern int strcmp (const char *, const char *);
   7 extern int puts (const char *);
   8 extern void abort (void);
   9 #define err(str) do { puts(str); abort(); } while (0)
  10
  11
  12 #define S(X) S2(X)
  13 #define S2(X) #X
  14 #define TAB "   " /* Note there is a tab character here. */
  15
  16 int main (int argc, char *argv[])
  17 {
  18   /* The space before "bar" here is vital.  */
  19   char a[] = S(S(TAB));
  20
  21   if (strcmp (a, "\"\\\"        \\\"\""))
  22     err ("stringification caused octal");
  23
  24   return 0;
  25 }