.\" Copyright (c) 1990, 1991, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" Chris Torek and the American National Standards Committee X3,
.\" on Information Processing Systems.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by the University of
.\"	California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"     @(#)strcpy.3	8.1 (Berkeley) 6/4/93
.\"
.\" jpman %Id%
.\"
.Dd June 4, 1993
.Dt STRCPY 3
.Os BSD 4
.Sh 名称
.Nm strcpy
.Nd 文字列のコピー
.Sh 書式
.Fd #include <string.h>
.Ft char *
.Fn strcpy "char *dst" "const char *src"
.Ft char *
.Fn strncpy "char *dst" "const char *src" "size_t len"
.Sh 解説
.Fn strcpy
および
.Fn strncpy
関数は、文字列
.Fa src
を
.Fa dst
にコピーします (終端の
.Ql \e0
文字を含めて)。
.Pp
.Fn strncpy
は、
.Fa len
個以上の文字は
.Fa dst
にコピーせず、
.Fa src
の長さが
.Fa len
文字以下の場合には
.Ql \e0
文字を追加します。また、
.Fa src
の長さが
.Fa len
文字以上である場合は、
.Fa dst
を終端しません。
.Sh 戻り値
.Fn strcpy
および
.Fn strncpy
関数は、
.Fa dst
を返します。
.Sh 例
次の行は、
.Dq Li chararray
を
.Dq Li abc\e0\e0\e0
に設定します :
.Bd -literal -offset indent
(void)strncpy(chararray, "abc", 6).
.Ed
.Pp
次の行はは、
.Dq Li chararray
を
.Dq Li abcdef
に設定します :
.Bd -literal -offset indent
(void)strncpy(chararray, "abcdefgh", 6);
.Ed
.Sh 参照
.Xr bcopy 3 ,
.Xr memccpy 3 ,
.Xr memcpy 3 ,
.Xr memmove 3
.Sh 規格
.Fn strcpy
および
.Fn strncpy
関数は、
.St -ansiC
に準拠しています。