#include <stdio.h>
//move malloc to correct header

void * malloc(int size)
{
	IntPtr retval ;
	retval = __invoke__ Marshal.AllocHGlobal(size);
	return (void*)(retval);
}

typedef struct _node
{
	int a;
	struct _node *prev;
}node;

node* push_int(node* old_node,int cada)
{
	node *retval;
	retval = (node*) malloc(sizeof(node));
	retval->a=cada;
    retval->prev=old_node;
	return retval;
}


int main()
{
	node * stack=NULL;
	node *tmp=NULL;
	int i;
	for(i=0;i<100;i++)
	{
		stack=push_int(stack,i);
	}
	for(tmp=stack;tmp!=NULL;tmp=tmp->prev)
	{
		printf("%d\n",tmp->a);
	}
	return 0;
}