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66 lines
1.8 KiB
66 lines
1.8 KiB
/**
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* \file
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* This interface provides only one function at all.
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* indexUuid will generate a uuid to the current object.
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*
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* This one is not generic enough for an interface...I
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* don't want to rely on Uuid here....The Uuid stuff is more
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* an implementation of this interface.
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*
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* An implementation of indexable::index should always return
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* an instance of class Index / or an class that implements
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* the index interface. Uuid would then be a candidate for such
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* a class.
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*
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* \todo
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* Maybe merge hashable and indexable. Thus we might get an
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* easy way to exchange the hashing mechanism used for my
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* associative arrays.
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*
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* \author Georg Hopp
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*
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* \copyright
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* Copyright © 2014 Georg Hopp
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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. See the
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* GNU General Public License for more details.
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*
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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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __TR_INTERFACE_INDEXABLE_H__
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#define __TR_INTERFACE_INDEXABLE_H__
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#include "tr/interface.h"
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typedef void * (* fptr_TR_getIndex)(void *);
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TR_INTERFACE(TR_Indexable) {
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TR_IFID;
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fptr_TR_getIndex index;
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};
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/**
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* Get it's index from an indexable object.
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*/
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inline
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void *
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TR_getIndex(void * indexable)
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{
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void * ret;
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TR_RETCALL(indexable, TR_Indexable, index, ret);
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return ret;
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}
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#endif // __TR_INTERFACE_INDEXABLE_H__
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// vim: set ts=4 sw=4:
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