1 .\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
3 .\" This is free documentation; you can redistribute it and/or
4 .\" modify it under the terms of the GNU General Public License as
5 .\" published by the Free Software Foundation; either version 2 of
6 .\" the License, or (at your option) any later version.
8 .\" References consulted:
9 .\" GNU glibc-2 source code and manual
11 .\" Japanese Version Copyright (c) 1999 HANATAKA Shinya
12 .\" all rights reserved.
13 .\" Translated Tue Jan 11 00:55:48 JST 2000
14 .\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
16 .TH STRNLEN 3 2011-09-28 "GNU" "Linux Programmer's Manual"
18 strnlen \- ¸ÇÄêŤÎʸ»úÎó¤ÎŤµ¤òÄ´¤Ù¤ë
21 .B #include <string.h>
23 .BI "size_t strnlen(const char *" s ", size_t " maxlen );
27 glibc ¸þ¤±¤Îµ¡Ç½¸¡ºº¥Þ¥¯¥í¤ÎÍ×·ï
28 .RB ( feature_test_macros (7)
38 _XOPEN_SOURCE\ >=\ 700 || _POSIX_C_SOURCE\ >=\ 200809L
47 ´Ø¿ô¤Ï \fIs\fP ¤¬»Ø¤¹Ê¸»úÎó¤ÎŤµ¤ò¥Ð¥¤¥È¿ô¤ÇÊÖ¤¹¡£
48 Ťµ¤Ë¤Ï½ªÃ¼¤Î NULL ¥Ð¥¤¥È (\(aq\\0\(aq) ¤Ï´Þ¤Þ¤Ê¤¤¡£
49 ¤Þ¤¿Ä¹¤µ¤ÏºÇÂç¤Ç \fImaxlen\fP ¤Þ¤Ç¤Ç¤¢¤ê¡¢
51 ¤Ï \fIs\fP ¤ÎºÇ½é¤Î \fImaxlen\fP ¥Ð¥¤¥È¤Î¤ß¤ò¸¡ºº¤·
52 \fIs+maxlen\fP ¤è¤êÀè¤ò¸¡ºº¤¹¤ë¤³¤È¤Ï¤Ê¤¤¡£
55 ´Ø¿ô¤Ï \fImaxlen\fP °Ê²¼¤Ê¤é¤Ð \fIstrlen(s)\fP ¤ÈƱ¤¸
56 ÃͤòÊÖ¤¹¡£\fIs\fP ¤Î»Ø¤¹Ê¸»úÎ󤬺ÇÂç \fImaxlen\fP ¥Ð¥¤¥È¤Þ¤Ç¤Ë
57 NULL ¥Ð¥¤¥È (\(aq\\0\(aq) ʸ»ú¤ò´Þ¤Þ¤Ê¤¤¾ì¹ç¤Ë¤Ï \fImaxlen\fP ¤òÊÖ¤¹¡£