lsearch.3c (2010 09)

lsearch(3C) lsearch(3C)

#include <stdio.h>

#define TABSIZE 50

#define ELSIZE 120

char line[ELSIZE], tab[TABSIZE][ELSIZE], *lsearch( );

size_t nel = 0;

int strcmp( );

...

while (fgets(line, ELSIZE, stdin) != NULL &&

nel < TABSIZE)

(void) lsearch(line, (char *)tab, &nel,

ELSIZE, strcmp);

...

RETURN VALUE

If the searched-for datum is found, both

lsearch()

and lfind() return a pointer to it. Otherwise,

lfind() returns NULL and lsearch() returns a pointer to the newly added element.

WARNINGS

Undeﬁned results can occur if there is not enough room in the table to add a new item.