51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
/*
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* $Id$
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*
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Copyright (c) 2006-2019 Chung, Hyung-Hwan. All rights reserved.
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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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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "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 AUTHOR 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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#include <qse/cmn/gdl.h>
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void qse_gdl_chain (qse_gdl_t* gdl, qse_gdl_link_t* prev, qse_gdl_link_t* x, qse_gdl_link_t* next)
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{
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x->prev = prev;
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x->next = next;
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next->prev = x;
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prev->next = x;
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}
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void qse_gdl_unchain (qse_gdl_t* gdl, qse_gdl_link_t* x)
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{
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qse_gdl_link_t* p = x->prev;
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qse_gdl_link_t* n = x->next;
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n->prev = p; p->next = n;
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}
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void qse_gdl_replace (qse_gdl_t* gdl, qse_gdl_link_t* old_link, qse_gdl_link_t* new_link)
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{
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new_link->next = old_link->next;
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new_link->next->prev = new_link;
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new_link->prev = old_link->prev;
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new_link->prev->next = new_link;
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}
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