libtar_list_new(3) C Library Calls libtar_list_new(3)NAME
libtar_list_new, libtar_list_free, libtar_list_next, libtar_list_prev,
libtar_list_add, libtar_list_del, libtar_list_search, libtar_list_dup,
libtar_list_merge, libtar_list_add_str - linked list routines
SYNOPSIS
#include <libtar.h>
libtar_list_t *libtar_list_new(int flags, int (*cmpfunc)());
void libtar_list_free(libtar_list_t *l, void (*freefunc)());
int libtar_list_add_str(libtar_list_t *l, char *str, char *delim);
int libtar_list_add(libtar_list_t *l, void *data);
void libtar_list_del(libtar_list_t *l, libtar_node_t **n);
int libtar_list_search(libtar_list_t *l, libtar_node_t **n, void *data,
int (*matchfunc)());
int libtar_list_next(libtar_list_t *l, libtar_node_t **n);
int libtar_list_prev(libtar_list_t *l, libtar_node_t **n);
libtar_list_t *libtar_list_dup(libtar_list_t *l);
libtar_list_t *libtar_list_merge(int (*cmpfunc)(), int flags, lib‐
tar_list_t *list1, libtar_list_t *list2);
DESCRIPTION
The libtar_list_new() function creates a new list. The flags argument
must be one of the following values:
LIST_USERFUNC
The cmpfunc argument points to a user-supplied function which
determines the ordering of the list.
LIST_STACK
Use the list as a stack. New elements are added to the front of
the list.
LIST_QUEUE
Use the list as a queue. New elements are added to the end of
the list.
The libtar_list_free() function deallocates all memory associated with
the list l. If freefunc is not NULL, it is called to free memory asso‐
ciated with each node in the list.
The libtar_list_add() function adds the element pointed to by data to
the list l. The position of the new element will be determined by the
flags passed to libtar_list_new() when the list was created.
The libtar_list_add_str() function tokenizes the string str using the
delimiter characters in the string delim. The resulting tokens are
added to list l using libtar_list_add().
The libtar_list_search() function searches for an element which matches
data using the matching function matchfunc. If matchfunc is NULL, a
default matching function designed for ASCII strings is used. Search‐
ing begins from the node pointed to by n.
The libtar_list_del() function removes the entry pointed to by n from
the list pointed to by l.
The libtar_list_dup() function creates a copy of the list l using
dynamically allocated memory.
The libtar_list_merge() function creates a new list with flags and cmp‐
func, in the same way as libtar_list_new(). It then adds all elements
from list1 and list2 using libtar_list_add().
RETURN VALUE
The libtar_list_new(), libtar_list_dup(), and libtar_list_merge() func‐
tions return a pointer to the new list structure, or NULL on error.
The libtar_list_next(), libtar_list_prev(), and libtar_list_search()
functions return 1 when valid data is returned, or 0 otherwise.
The libtar_list_add() and libtar_list_add_str() functions return 0 on
success, or -1 on error.
SEE ALSOlibtar_hash_new(3)University of Illinois Jan 2000 libtar_list_new(3)
