61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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* Copyright (c) 2010, Andrea Mazzoleni. All rights reserved.
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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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*
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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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*
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tommylist.h"
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#include "tommychain.h"
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/** \internal
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* Setup a list.
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*/
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tommy_inline void tommy_list_set(tommy_list* list, tommy_node* head, tommy_node* tail)
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{
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head->prev = tail;
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tail->next = 0;
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*list = head;
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}
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void tommy_list_sort(tommy_list* list, tommy_compare_func* cmp)
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{
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tommy_chain chain;
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tommy_node* head;
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if (tommy_list_empty(list))
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return;
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head = tommy_list_head(list);
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/* create a chain from the list */
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chain.head = head;
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chain.tail = head->prev;
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tommy_chain_mergesort(&chain, cmp);
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/* restore the list */
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tommy_list_set(list, chain.head, chain.tail);
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}
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