(Scheduled for deprecation) Returns the maximum number of bytes that are known to remain available for read.
After leastSize() bytes have been read, the stream will either have reached EOS
and empty() returns true, or leastSize() returns again a number greater than 0.
(Scheduled for deprecation) Returns the maximum number of bytes that are known to remain available for read.
After leastSize() bytes have been read, the stream will either have reached EOS and empty() returns true, or leastSize() returns again a number greater than 0.