#include "stack.h"

typedef struct {
	stack toEnqueue;
	stack toDequeue;
}queue;



void queue_init(queue* q, size_t elemsize, void(*disposefn) (void*));
void queue_enqueue(queue* q, void* elem);

void* queue_first(queue* q);

void queue_dequeue(queue* q);
void queue_map(queue* q, void(*mapfn)(void* elem));
void queue_dispose(queue* q);