| NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | BUGS | SEE ALSO | COLOPHON | The Linux Programming Interface |
LSEARCH(3) Linux Programmer's Manual LSEARCH(3)
lfind, lsearch - linear search of an array
#include <search.h>
void *lfind(const void *key, const void *base, size_t *nmemb,
size_t size, int(*compar)(const void *, const void *));
void *lsearch(const void *key, void *base, size_t *nmemb,
size_t size, int(*compar)(const void *, const void *));
lfind() and lsearch() perform a linear search for key in the array base which
has *nmemb elements of size bytes each. The comparison function referenced by
compar is expected to have two arguments which point to the key object and to
an array member, in that order, and which returns zero if the key object
matches the array member, and nonzero otherwise.
If lsearch() does not find a matching element, then the key object is inserted
at the end of the table, and *nmemb is incremented. In particular, one should
know that a matching element exists, or that more room is available.
lfind() returns a pointer to a matching member of the array, or NULL if no
match is found. lsearch() returns a pointer to a matching member of the
array, or to the newly added member if no match is found.
SVr4, 4.3BSD, POSIX.1-2001. Present in libc since libc-4.6.27.
The naming is unfortunate.
bsearch(3), hsearch(3), tsearch(3)
This page is part of release 3.32 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can be found
at http://www.kernel.org/doc/man-pages/.
GNU 1999-09-27 LSEARCH(3)
HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface