diff options
Diffstat (limited to 'lib/libc/stdlib')
| -rw-r--r-- | lib/libc/stdlib/lsearch.3 | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/lib/libc/stdlib/lsearch.3 b/lib/libc/stdlib/lsearch.3 index 5e76724..2a1a731 100644 --- a/lib/libc/stdlib/lsearch.3 +++ b/lib/libc/stdlib/lsearch.3 @@ -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 , |
