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-rw-r--r--src/network/socket/qnativesocketengine.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/network/socket/qnativesocketengine.cpp b/src/network/socket/qnativesocketengine.cpp
index f2bc3cec94..11d19682d8 100644
--- a/src/network/socket/qnativesocketengine.cpp
+++ b/src/network/socket/qnativesocketengine.cpp
@@ -873,6 +873,10 @@ qint64 QNativeSocketEngine::writeDatagram(const char *data, qint64 size, const Q
/*!
Writes a block of \a size bytes from \a data to the socket.
Returns the number of bytes written, or -1 if an error occurred.
+
+ Passing zero as the \a size parameter on a connected UDP socket
+ will send an empty datagram. For other socket types results are
+ unspecified.
*/
qint64 QNativeSocketEngine::write(const char *data, qint64 size)
{