rhodes@grebyn.com (Ned Rhodes) (04/19/91)
The following program fragment will not compile under my current
configuration of MPW. I have not tried other versions or the latest one
ETO #3. The same code will compile under gcc, so I think it is a
problem with MPW on the Mac. Does anyone have any ideas? I have passed
this on to DTS.
/*
Shows that offsetof macro is not being properly processed
MPW 3.2b9 and C 3.2b3Q101
*/
#include <stddef.h>
/* macro for sizeof a structure member */
#define sizeofm(struct_t, member) ((size_t)(sizeof(((struct_t *)0)->member)))
/* record definition */
typedef struct {
char rd_contact[41]; /* contact name (last name first) */
char rd_title[41]; /* contact job title */
char rd_company[41]; /* company name */
char rd_addr[2*40+1]; /* company address */
char rd_city[26]; /* city */
char rd_state[3]; /* state */
char rd_zip[11]; /* zip code */
char rd_phone[13]; /* phone number */
char rd_ext[5]; /* phone extension */
char rd_fax[13]; /* fax number */
char rd_notes[4*40+1]; /* notes */
} rolodeck_t;
typedef struct { /* field definition */
size_t offset; /* offset of field in record */
size_t len; /* field length */
int type; /* field data type */
int flags; /* flags */
char filename[100];
/* name of file to store keys in */
} cbfield_t;
/* field definition list */
const cbfield_t rdfldv[] = {
{offsetof(rolodeck_t, rd_contact),
sizeofm(rolodeck_t, rd_contact),
1,
2,
"rdcont.ndx"
}
};
main()
{
}
--
Ned W. Rhodes (703) 534-2297 (voice)
Software Systems Group (703) 237-9654 (fax)
2001 North Kenilworth Street CompuServe : 71321,424
Arlington, VA 22205 rhodes@grebyn.COM