typedef struct _AlgorithmTime {
	// Round.
	int				round;
	// Fase.
	int				fase;
	// Valore massimo di fase.
	int				last_fase;
	
	public:

		_AlgorithmTime() {
			round = 0;
			fase = 0;
			last_fase = 0;
		}
	
		// Costruttore.
		_AlgorithmTime(int r, int f, int l) {
			round = r;
			fase = f;
			last_fase = l;
		}

		// Costruttore.
		_AlgorithmTime(const _AlgorithmTime & t) {
			round = t.round;
			fase = t.fase;
			last_fase = t.last_fase;
		}
		
		// Operatore di uguaglianza.
		bool operator== (struct _AlgorithmTime & t) {
			return ((t.fase == fase) && (t.round == round));
		}

		// Operatore minore.
		bool operator < (struct _AlgorithmTime & t) {
			if (round < t.round)
				return true;
			if (round > t.round)
				return false;
			if (fase < t.fase)
				return true;
			return false;
		}

		// Operatore maggiore.
		bool operator > (struct _AlgorithmTime & t) {
			if (round > t.round)
				return true;
			if (round < t.round)
				return false;
			if (fase > t.fase)
				return true;
			return false;
		}
		
		void operator++ () {
			if (fase == last_fase) {
				round++;
				fase = 0;
				return;
			}
			fase++;
		}

		void operator-- () {
			if (fase == 0) {
				round--;
				fase = last_fase;
				return;
			}
			fase--;
		}
} AlgorithmTime;

bool
std::less<AlgorithmTime>::operator()(const AlgorithmTime & t1, const AlgorithmTime & t2) const
{ 
	if (t1.round < t2.round)
		return true;
	if (t1.round > t2.round)
		return false;
	if (t1.fase < t2.fase)
		return true;
	return false;
}

.gnu.linkonce.t._ZN11taskPending10taskStatusEh' referenced in section `.rodata' of wpan/p802_15_4mac.o: defined in discarded section `.gnu.linkonce.t._ZN11taskPending10taskStatusEh' of wpan/p802_15_4mac.o
collect2: ld returned 1 exit status
make: *** [ns] Error 1
Ns make failed!