struct fileMetaData /* contains the metadata about the file */
{
char * positionptr; /* where next char is written or read */
char * fileptr; /* where in memory the file is placed */
const char * file_name; /* the name of the file */
const char * file_mode; /* in which mode its created: "r", "w", "a" */
char * lastaddress; /* the last byte from the fileptr address */
};

struct fileTable /* provides a backbone: holds each file entry */
{
struct fileTable *next; /* next file entry */
struct fileMetaData fileno; /* pointer to fileMetaData str.*/
};


and i define :

struct fileTable *nextfile;

Now, executing the statement:

*(nextfile->fileno.positionptr++);
should give me the char pointed to by 'positionptr' + the positionptr should move one byte.BUt actually its not happening,

what is the correct statement of doing this?

Are you sure you have initialized the "struct fileTable *nextfile" pointer?? Is it pointing to something ??

ya, actually i m getting the nextfile as a formal argument in the function :

int fileread(char *bufferarray, int size, int count, struct fileTable *nextfile)

{
.....
....
}

and the calling function is verified to have passed a legal address in nextfile.

any suggestions would be highly appriciated