C++ (Cpp) NullTypeの例

コード例 #1

ファイル: window.cpp プロジェクト: Samuel0Paul/tdesktop

void Window::notifySchedule(History *history, MsgId msgId) {
	if (App::quiting() || !history->currentNotification()) return;

	bool haveSetting = (history->peer->notify != UnknownNotifySettings);
	if (haveSetting) {
		if (history->peer->notify != EmptyNotifySettings && history->peer->notify->mute > unixtime()) {
			history->clearNotifications();
			return;
		}
	} else {
		App::wnd()->getNotifySetting(MTP_inputNotifyPeer(history->peer->input));
	}

	uint64 ms = getms(true) + NotifyWaitTimeout;
	notifyWhenAlerts[history].insert(ms, NullType());
	if (cDesktopNotify()) {
		NotifyWhenMaps::iterator i = notifyWhenMaps.find(history);
		if (i == notifyWhenMaps.end()) {
			i = notifyWhenMaps.insert(history, NotifyWhenMap());
		}
		if (i.value().constFind(msgId) == i.value().cend()) {
			i.value().insert(msgId, ms);
		}
		NotifyWaiters *addTo = haveSetting ? &notifyWaiters : &notifySettingWaiters;
		if (addTo->constFind(history) == addTo->cend()) {
			addTo->insert(history, NotifyWaiter(msgId, ms));
		}
	}
	if (haveSetting) {
		if (!notifyWaitTimer.isActive()) {
			notifyWaitTimer.start(NotifyWaitTimeout);
		}
	}
}

コード例 #2

ファイル: Null.hpp プロジェクト: BackupTheBerlios/luced

namespace LucED
{

class NullType
{};

const NullType Null = NullType();

inline bool operator==(const void* lhs, const NullType& rhs)
{
    return lhs == NULL;
}
inline bool operator==(const NullType& lhs, const void* rhs)
{
    return rhs == NULL;
}

inline bool operator!=(const void* lhs, const NullType& rhs)
{
    return lhs != NULL;
}

inline bool operator!=(const NullType& lhs, const void* rhs)
{
    return rhs != NULL;
}

} // namespace LucED