/* e_19_3.t:    Redefinitions of macros.    */

/* Excerpts from ISO C 3.8.3 "Examples".    */

#define OBJ_LIKE        (1-1)
#define FTN_LIKE(a)     ( a )

/* The following redefinitions should be diagnosed. */

/* 19.3:    */
#define OBJ_LIKE        (0)     /* different token sequence     */

/*  (1-1); or (0);  */
    OBJ_LIKE;

/* 19.4:    */
#undef  OBJ_LIKE
#define OBJ_LIKE        (1-1)
#define OBJ_LIKE        (1 - 1) /* different white space        */

/* 19.5:    */
#define FTN_LIKE(b)     ( a )   /* different parameter usage    */

/*  ( x ); or ( a); */
    FTN_LIKE(x);

/* 19.6:    */
#undef  FTN_LIKE
#define FTN_LIKE(a)     ( a )
#define FTN_LIKE(b)     ( b )   /* different parameter spelling */

/* 19.7:    Not in ISO C "Examples" */
#define FTN_LIKE        OBJ_LIKE