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#include <stdio.h>
#ifdef MEMDBG
#include "memdbg.h"
#endif
#include "treestruct.h"
treegen newspace(t)
/* allocates space for a new data item */
data_type t;
{
treegen tmp;
switch(t)
{
case tr_tree:
tmp=(treegen)malloc(sizeof(treed));
break;
case tr_node:
tmp=(treegen)malloc(sizeof(treenoded));
break;
case tr_branch:
tmp=(treegen)malloc(sizeof(treebranchd));
break;
default:
tmp=NULL;
break;
}
if(tmp==NULL)
return(NULL);
tmp->type=t;
tmp->t=NULL;
tmp->intdata=NULL;
tmp->data=NULL;
return(tmp);
}
tree tree_get_tree(i)
treegen i;
{
if(i==NULL)
return(0);
return(i->t);
}
void *tree_get_tree_data(i)
treegen i;
{
if(i==NULL)
return(NULL);
return(((treegen)i->t)->data);
}
int tree_set_tree(i, d)
treegen i;
void *d;
{
if(i==NULL)
return(0);
i->t=d;
return(1);
}
char *tree_get_name(i)
treegen i;
{
if(i==NULL)
return(NULL);
if(i->type==tr_tree)
return(((tree)i)->name);
else if(i->type==tr_node)
return(((treenode)i)->name);
else
return(NULL);
}
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