gnu/dist/gcc4/gcc/testsuite/gcc.dg/cpp/strify3.c

   1 /* Copyright (C) 2001 Free Software Foundation, Inc.  */
   2
   3 /* { dg-do run } */
   4
   5 /* Tests we stringify without inserting a space.  GCC 2.95.x and
   6    earlier would insert a bogus space before bar in the string, simply
   7    because a space was there in the invocation.
   8
   9    Neil Booth, 24 Sep 2001.  */
  10
  11 extern int strcmp (const char *, const char *);
  12 extern int puts (const char *);
  13 extern void abort (void);
  14 #define err(str) do { puts(str); abort(); } while (0)
  15
  16 #define str(x) #x
  17 #define xstr(x) str(x)
  18 #define glibc_hack(x, y) x@y
  19
  20 int main (int argc, char *argv[])
  21 {
  22   /* The space before "bar" here is vital.  */
  23   char a[] = xstr(glibc_hack(foo, bar));
  24
  25   if (strcmp (a, "foo@bar"))
  26     err ("stringification without spaces");
  27
  28   return 0;
  29 }