Date: Sun, 21 Apr 2013 10:30:19 +0000 (UTC) From: Joel Dahl <joel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r249721 - head/lib/libc/stdlib Message-ID: <201304211030.r3LAUJrO050431@svn.freebsd.org>
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Author: joel (doc committer) Date: Sun Apr 21 10:30:19 2013 New Revision: 249721 URL: http://svnweb.freebsd.org/changeset/base/249721 Log: Add example. PR: 177025 Submitted by: Fernando <fernando.apesteguia@gmail.com> Reviewed by: theraven Modified: head/lib/libc/stdlib/lsearch.3 Modified: head/lib/libc/stdlib/lsearch.3 ============================================================================== --- head/lib/libc/stdlib/lsearch.3 Sun Apr 21 10:08:33 2013 (r249720) +++ head/lib/libc/stdlib/lsearch.3 Sun Apr 21 10:30:19 2013 (r249721) @@ -8,7 +8,7 @@ .\" .\" $FreeBSD$ .\" -.Dd October 11, 2002 +.Dd April 21, 2013 .Dt LSEARCH 3 .Os .Sh NAME @@ -81,6 +81,47 @@ returns Both functions return .Dv NULL if an error occurs. +.Sh EXAMPLES +.Bd -literal +#include <search.h> +#include <stdio.h> +#include <stdlib.h> + +static int +element_compare(const void *p1, const void *p2) +{ + int left = *(const int *)p1; + int right = *(const int *)p2; + + return (left - right); +} + +int +main(int argc, char **argv) +{ + const int array[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; + size_t element_size = sizeof(array[0]); + size_t array_size = sizeof(array) / element_size; + int key; + void *element; + + printf("Enter a number: "); + if (scanf("%d", &key) != 1) { + printf("Bad input\n"); + return (EXIT_FAILURE); + } + + element = lfind(&key, array, &array_size, element_size, + element_compare); + + if (element != NULL) + printf("Element found: %d\n", *(int *)element); + else + printf("Element not found\n"); + + return (EXIT_SUCCESS); +} +.Ed .Sh SEE ALSO .Xr bsearch 3 , .Xr hsearch 3 ,
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