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.
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
lfind(), lsearch() |
Thread safety | MT-Safe |
This page is part of release 4.07 of the Linux man-pages project. A
description of the project, information about reporting bugs,
and the latest version of this page, can be found at
https://www.kernel.org/doc/man−pages/.
|
Copyright 1995 Jim Van Zandt <jrvvanzandt.mv.com> %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. %%%LICENSE_END Corrected prototype and include, aeb, 990927 |