helpers.h

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00001 /* LIBDGL -- a Directed Graph Library implementation
00002  * Copyright (C) 2002 Roberto Micarelli
00003  *
00004  * This program is free software; you can redistribute it and/or modify
00005  * it under the terms of the GNU General Public License as published by
00006  * the Free Software Foundation; either version 2 of the License, or
00007  * (at your option) any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software
00016  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017  */
00018 
00019 /*
00020  * best view tabstop=4
00021  */
00022 
00023 #ifndef _DGL_HELPERS_H_
00024 #define _DGL_HELPERS_H_
00025 
00026 #include "tree.h"
00027 
00028 extern unsigned char *dgl_mempush(unsigned char *pstack, long *istack,
00029                                   long size, void *pv);
00030 extern unsigned char *dgl_mempop(unsigned char *pstack, long *istack,
00031                                  long size);
00032 extern void dgl_swapInt32Bytes(dglInt32_t * pn);
00033 extern void dgl_swapInt64Bytes(dglInt64_t * pn);
00034 extern int dgl_edge_prioritizer_del(dglGraph_s * pG, dglInt32_t nId,
00035                                     dglInt32_t nPriId);
00036 extern int dgl_edge_prioritizer_add(dglGraph_s * pG, dglInt32_t nId,
00037                                     dglInt32_t nPriId);
00038 extern void *dgl_reduce_edgeset(void *pvSet, int *pc, dglInt32_t nKey);
00039 
00040 #endif