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Reads a byte from the underlying stream and returns the byte cast to an int
, or returns -1 if reading from the end of the stream.
public:
override int ReadByte();
public override int ReadByte();
override this.ReadByte : unit -> int
Public Overrides Function ReadByte () As Integer
The byte cast to an int
, or -1 if reading from the end of the stream.
An I/O error occurs, such as the stream being closed.
The stream does not support reading.
Methods were called after the stream was closed.
The default implementation on Stream
creates a new single-byte array and then calls Read(Byte[], Int32, Int32). While this is formally correct, it is inefficient. Any stream with an internal buffer should override this method and provide a much more efficient version that reads the buffer directly, avoiding the extra array allocation on every call.
Product | Versions |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 1.5, 1.6, 2.0, 2.1 |
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