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Fix some compiler warnings in the MQTT WebsocketSubscription Example

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Fix some warnings that were reported by the MSVC compiler with the Wall
setting:
- use static_cast for signed/unsigned conversion
- use QString::fromUtf8 instead of the QByteArray constructor

Pick-to: 6.5
Task-number: QTBUG-110893
Change-Id: Ic982d3c16feb1ebcef729b4dfd023cc3b5017fec
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
This commit is contained in:
Mate Barany 2023-04-24 15:38:07 +02:00
parent 15df42c95d
commit 84e3561bf8
1 changed files with 2 additions and 2 deletions
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4
examples/mqtt/websocketsubscription/websocketiodevice.cpp
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@ -17,7 +17,7 @@ WebSocketIODevice::WebSocketIODevice(QObject *parent)
bool WebSocketIODevice::open(QIODevice::OpenMode mode)
{
QWebSocketHandshakeOptions options;
options.setSubprotocols({m_protocol});
options.setSubprotocols(QStringList{ QString::fromUtf8(m_protocol) });
m_socket.open(m_url, options);
@ -33,7 +33,7 @@ void WebSocketIODevice::close()
qint64 WebSocketIODevice::readData(char *data, qint64 maxlen)
{
qint64 bytesToRead = qMin(maxlen, (qint64)m_buffer.size());
memcpy(data, m_buffer.constData(), bytesToRead);
memcpy(data, m_buffer.constData(), static_cast<size_t>(bytesToRead));
m_buffer = m_buffer.right(m_buffer.size() - bytesToRead);
return bytesToRead;
}