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QIODevice: improve QIODevice::readLine() documentation

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Pick-to: 6.8 6.7 6.5
Change-Id: I252c0faf982ff8328475243fdbc86cc4d1462498
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
This commit is contained in:
Rym Bouabid 2024-08-28 14:32:22 +02:00
parent 8b42efcbc2
commit bbf980e43f
1 changed files with 6 additions and 0 deletions
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6
src/corelib/io/qiodevice.cpp
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@ -1430,6 +1430,12 @@ qint64 QIODevicePrivate::readLine(char *data, qint64 maxSize)
Reads a line from the device, but no more than \a maxSize characters, Reads a line from the device, but no more than \a maxSize characters,
and returns the result as a byte array. and returns the result as a byte array.
If \a maxSize is 0 or not specified, the line can be of any length,
thereby enabling unlimited reading.
The resulting line can have trailing end-of-line characters ("\n" or "\r\n"),
so calling QByteArray::trimmed() may be necessary.
This function has no way of reporting errors; returning an empty This function has no way of reporting errors; returning an empty
QByteArray can mean either that no data was currently available QByteArray can mean either that no data was currently available
for reading, or that an error occurred. for reading, or that an error occurred.