C++ (Cpp) q_static_assert Beispiele

Beispiel #1

Datei: qabstracteventdispatcher.cpp Projekt: tsuibin/emscripten-qt

static inline int bucketOffset(int timerId)
{
    q_static_assert(sizeof BucketSize == sizeof BucketOffset);
    q_static_assert(sizeof(timerIds) / sizeof(timerIds[0]) == NumberOfBuckets);

    for (int i = 0; i < NumberOfBuckets; ++i) {
        if (timerId < BucketSize[i])
            return i;
        timerId -= BucketSize[i];
    }
    qFatal("QAbstractEventDispatcher: INTERNAL ERROR, timer ID %d is too large", timerId);
    return -1;
}

Beispiel #2

Datei: qnetworkproxy.cpp Projekt: maxxant/qt

static QNetworkProxy::Capabilities defaultCapabilitiesForType(QNetworkProxy::ProxyType type)
{
    q_static_assert(int(QNetworkProxy::DefaultProxy) == 0);
    q_static_assert(int(QNetworkProxy::FtpCachingProxy) == 5);
    static const int defaults[] =
    {
        /* [QNetworkProxy::DefaultProxy] = */
        (int(QNetworkProxy::ListeningCapability) |
         int(QNetworkProxy::TunnelingCapability) |
         int(QNetworkProxy::UdpTunnelingCapability)),
        /* [QNetworkProxy::Socks5Proxy] = */
        (int(QNetworkProxy::TunnelingCapability) |
         int(QNetworkProxy::ListeningCapability) |
         int(QNetworkProxy::UdpTunnelingCapability) |
         int(QNetworkProxy::HostNameLookupCapability)),
        // it's weird to talk about the proxy capabilities of a "not proxy"...
        /* [QNetworkProxy::NoProxy] = */
        (int(QNetworkProxy::ListeningCapability) |
         int(QNetworkProxy::TunnelingCapability) |
         int(QNetworkProxy::UdpTunnelingCapability)),
        /* [QNetworkProxy::HttpProxy] = */
        (int(QNetworkProxy::TunnelingCapability) |
         int(QNetworkProxy::CachingCapability) |
         int(QNetworkProxy::HostNameLookupCapability)),
        /* [QNetworkProxy::HttpCachingProxy] = */
        (int(QNetworkProxy::CachingCapability) |
         int(QNetworkProxy::HostNameLookupCapability)),
        /* [QNetworkProxy::FtpCachingProxy] = */
        (int(QNetworkProxy::CachingCapability) |
         int(QNetworkProxy::HostNameLookupCapability)),
    };

    if (int(type) < 0 || int(type) > int(QNetworkProxy::FtpCachingProxy))
        type = QNetworkProxy::DefaultProxy;
    return QNetworkProxy::Capabilities(defaults[int(type)]);
}