gcc/testsuite/gcc.dg/cpp/trad/macroargs.c

   1 /* Test that whitespace in arguments is preserved, and that each
   2    newline in macro arguments become a space.  */
   3
   4 /* { dg-do run } */
   5
   6 #define f(x, y) "x y"
   7 #define g(x) x
   8
   9 extern void abort (void);
  10
  11 int main ()
  12 {
  13   const char *str1 = f( foo ,bar);
  14   const char *str2 = f(
  15 foo
  16 ,bar);
  17
  18   if (strcmp (str1, " foo  bar"))
  19     abort ();
  20
  21   if (strcmp (str1, str2))
  22     abort ();
  23
  24   /* Verify that quoted state is preserved over a newline.  */
  25   if (strcmp (g /* { dg-bogus "unterminated 2" } */ ("1
  26 , 2"), "1 , 2"))
  27     abort ();
  28
  29   return 0;
  30 }