mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-03 07:07:20 +00:00
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
|
/* $NetBSD: hcreate.c,v 1.2 2001/02/19 21:26:04 ross Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2001 Christopher G. Demetriou
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* 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. The name of the author may not be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
||
|
|
*
|
||
|
|
* <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>>
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* hcreate() / hsearch() / hdestroy()
|
||
|
|
*
|
||
|
|
* SysV/XPG4 hash table functions.
|
||
|
|
*
|
||
|
|
* Implementation done based on NetBSD manual page and Solaris manual page,
|
||
|
|
* plus my own personal experience about how they're supposed to work.
|
||
|
|
*
|
||
|
|
* I tried to look at Knuth (as cited by the Solaris manual page), but
|
||
|
|
* nobody had a copy in the office, so...
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
#if 0
|
||
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
||
|
|
__RCSID("$NetBSD: hcreate.c,v 1.2 2001/02/19 21:26:04 ross Exp $");
|
||
|
|
#endif /* LIBC_SCCS and not lint */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <search.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
static struct hsearch_data htab;
|
||
|
|
|
||
|
|
int
|
||
|
|
_DEFUN(hcreate, (nel), size_t nel)
|
||
|
|
{
|
||
|
|
return hcreate_r (nel, &htab);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
_DEFUN_VOID (hdestroy)
|
||
|
|
{
|
||
|
|
hdestroy_r (&htab);
|
||
|
|
}
|
||
|
|
|
||
|
|
ENTRY *
|
||
|
|
_DEFUN(hsearch, (item, action),
|
||
|
|
ENTRY item _AND
|
||
|
|
ACTION action)
|
||
|
|
{
|
||
|
|
ENTRY *retval;
|
||
|
|
|
||
|
|
hsearch_r (item, action, &retval, &htab);
|
||
|
|
|
||
|
|
return retval;
|
||
|
|
}
|