LSEARCH(3)                                          Linux Programmer's Manual                                         LSEARCH(3)



NAME
       lfind, lsearch - linear search of an array

SYNOPSIS
       #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 *));

DESCRIPTION
       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.

RETURN VALUE
       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.

CONFORMING TO
       SVr4, 4.3BSD, POSIX.1-2001.  Present in libc since libc-4.6.27.

BUGS
       The naming is unfortunate.

SEE ALSO
       bsearch(3), hsearch(3), tsearch(3)

COLOPHON
       This  page  is  part of release 3.25 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)