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c660bfb129
2. Added the svn:ignore properties to clean up the output of "svn update" so that it doesn't show some unversioned files anymore sush as compiled binaries and object files(*.a). 3. Converted the end-of-line charapter sequences from Windows(CR LF) to Unix format(LF). It used to be a mixture of both styles that often confuse some programs. If some files have to be in Windows format, you should add the svn:eol-style on them(svn propset svn:eol-style native polymer/eduke32/source/thefile.c). git-svn-id: https://svn.eduke32.com/eduke32@854 1a8010ca-5511-0410-912e-c29ae57300e0
103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
/*
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Copyright (C) 1994-1995 Apogee Software, Ltd.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Modifications for JonoF's port by Jonathon Fowler (jonof@edgenetwk.com)
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*/
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/**********************************************************************
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module: LL_MAN.C
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author: James R. Dose
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date: January 1, 1994
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Linked list management routines.
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(c) Copyright 1994 James R. Dose. All Rights Reserved.
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**********************************************************************/
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#include <stddef.h>
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#include "ll_man.h"
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#define OFFSET( structure, offset ) \
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( *( ( char ** )&( structure )[ offset ] ) )
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/**********************************************************************
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Memory locked functions:
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**********************************************************************/
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void LL_AddNode
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(
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char *item,
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char **head,
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char **tail,
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int next,
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int prev
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)
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{
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OFFSET(item, prev) = NULL;
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OFFSET(item, next) = *head;
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if (*head)
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{
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OFFSET(*head, prev) = item;
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}
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else
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{
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*tail = item;
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}
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*head = item;
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}
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void LL_RemoveNode
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(
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char *item,
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char **head,
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char **tail,
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int next,
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int prev
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)
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{
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if (OFFSET(item, prev) == NULL)
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{
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*head = OFFSET(item, next);
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}
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else
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{
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OFFSET(OFFSET(item, prev), next) = OFFSET(item, next);
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}
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if (OFFSET(item, next) == NULL)
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{
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*tail = OFFSET(item, prev);
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}
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else
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{
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OFFSET(OFFSET(item, next), prev) = OFFSET(item, prev);
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}
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OFFSET(item, next) = NULL;
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OFFSET(item, prev) = NULL;
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}
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