3 * \brief double ended queue
6 * Copyright (C) 2003-2009 Ushodaya Enterprises Limited
7 * \author Charles Yates <charles.yates@pandora.be>
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include "mlt_types.h"
29 /** The callback function used to compare items for insert sort.
31 * \public \memberof mlt_deque_s
32 * \param a the first object
33 * \param b the second object
34 * \returns 0 if equal, < 0 if a < b, or > 0 if a > b
36 typedef int ( *mlt_deque_compare )( void *a, void *b );
38 extern mlt_deque mlt_deque_init( );
39 extern int mlt_deque_count( mlt_deque self );
40 extern int mlt_deque_push_back( mlt_deque self, void *item );
41 extern void *mlt_deque_pop_back( mlt_deque self );
42 extern int mlt_deque_push_front( mlt_deque self, void *item );
43 extern void *mlt_deque_pop_front( mlt_deque self );
44 extern void *mlt_deque_peek_back( mlt_deque self );
45 extern void *mlt_deque_peek_front( mlt_deque self );
46 extern void *mlt_deque_peek( mlt_deque self, int index );
47 extern int mlt_deque_insert( mlt_deque self, void *item, mlt_deque_compare );
49 extern int mlt_deque_push_back_int( mlt_deque self, int item );
50 extern int mlt_deque_pop_back_int( mlt_deque self );
51 extern int mlt_deque_push_front_int( mlt_deque self, int item );
52 extern int mlt_deque_pop_front_int( mlt_deque self );
53 extern int mlt_deque_peek_back_int( mlt_deque self );
54 extern int mlt_deque_peek_front_int( mlt_deque self );
56 extern int mlt_deque_push_back_double( mlt_deque self, double item );
57 extern double mlt_deque_pop_back_double( mlt_deque self );
58 extern int mlt_deque_push_front_double( mlt_deque self, double item );
59 extern double mlt_deque_pop_front_double( mlt_deque self );
60 extern double mlt_deque_peek_back_double( mlt_deque self );
61 extern double mlt_deque_peek_front_double( mlt_deque self );
63 extern void mlt_deque_close( mlt_deque self );