/* n_19.c:  Valid re-definitions of macros. */

/* Excerpts from ISO C 6.8.3 "Examples".    */

#define OBJ_LIKE        (1-1)

#define FTN_LIKE(a)     ( a )

/* 19.1:    */

#define OBJ_LIKE    /* white space */  (1-1) /* other */

/* 19.2:    */

#define FTN_LIKE( a     )(  /* note the white space */  \

                        a  /* other stuff on this line

                           */ )

/*  ( c );  */

    FTN_LIKE( c);

/* { dg-do preprocess }

   { dg-final { if ![file exist n_19.i] { return }                      } }

   { dg-final { if \{ [grep n_19.i "\\( *c *\\)"] != ""         \} \{   } }

   { dg-final { return \}                                               } }

   { dg-final { fail "n_19.c: valid re-definition of macros"            } }

 */