Thread: help on Linked list

hi,

i know we can vary the no. of records in the list but can we vary the record size itself.

eg

Code:

typedef struct {

int data;
char *name;
struct Recrd *next;
}Recrd;

Recrd *head=NULL, *cur=NULL;

is it possible to vary the length of name [structure variable]

i prefer to give the length of string variable at run time than at compile time[name[30]].

any help, will be appreciated.

Yes?

Remember it's just a char pointer, when you create a new node/record allocate memory for it (how ever much you need)

ie,

Code:

Recrd rc;

rc.name = malloc(5);
strcpy(rc.name, "Hello");       /* just to demonstrate ;) */

And when you remove/delete the record don't forget to free rc.name.

Code:

rc.name = malloc(5);
strcpy(rc.name, "Hello");

you really need at least one char more to store the nul-character.
In the current code you have a memory overrun

Oops, I knew that I just couldn't count that Hello = 5, not 4.