218c6b4b9b
which has some variation of writing in Japanese, as well as some typos. Submitted by: kano@na.rim.or.jp Approved by: kuriyama (mentor/implicitly)
101 lines
3 KiB
Groff
101 lines
3 KiB
Groff
.\"
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.\" Copyright (c) 1994, 1995 Joerg Wunsch
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.\"
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.\" All rights reserved.
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.\"
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.\" This program is free software.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Joerg Wunsch
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.\" 4. The name of the developer may not be used to endorse or promote
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.\" products derived from this software without specific prior written
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.\" permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\"
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.\" %FreeBSD: src/lib/libcompat/4.1/cftime.3,v 1.6.2.4 2001/12/17 10:08:28 ru Exp %
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.\"
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.\" $FreeBSD$
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.Dd June 15, 1993
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.Os
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.Dt CFTIME 3
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.Sh 名称
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.Nm cftime
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.Nm ascftime
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.Nd 日付と時刻の文字列への変換
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.Sh ライブラリ
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.Lb libcompat
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.Sh 書式
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.In time.h
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.Ft int
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.Fn cftime "char *s" "char *format" "const time_t *clock"
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.Ft int
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.Fn ascftime "char *s" "const char *format" "const struct tm *tmptr"
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.Sh 解説
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.Bf -symbolic
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.Fn cftime
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関数と
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.Fn ascftime
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関数は、
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.Xr strftime 3
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によって旧式なものとなっています。
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.Ef
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.Pp
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関数
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.Fn cftime
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および
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.Fn ascftime
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はできるだけ使用しないでください。
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バッファのオーバフロー状態をチェックする方法がないからです。
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代わりに
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.Xr strftime 3
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を使用してください。
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.Pp
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.Fn ascftime
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は
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.Xr strftime 3
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とほとんど同じです。ただし、最大バッファ長を指定するパラメータがないことと、
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.Em NULL
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ポインタが指定されると
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.Fa format
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パラメータがデフォルトで
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.Dq %C
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になるという点だけは異なります。
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.Pp
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.Fn cftime
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は同じ処理を行ないますが、指定された
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.Fa clock
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を変換するために最初に
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.Xr localtime 3
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を起動してから、
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.Fa format
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引数で要求されているような変換を実行します。
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.Sh 戻り値
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.Fn cftime
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関数と
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.Fn ascftime
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関数は、出力バッファ
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.Fa s
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に書き込まれた文字数を返します。その場合、末尾のヌル文字は数えません。
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.Sh 関連項目
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.Xr localtime 3 ,
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.Xr strftime 3
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