Am 26.07.2016 um 16:50 schrieb Johannes Pfau:
Am Mon, 25 Jul 2016 13:10:42 +0000

Hello,

I don't know if it is good practice or not, but sometimes it make
life easier if you can put part of the data back into the input
stream.


Writing data back to a stream is quite uncommon. The standard way to
solve such problems is a peek method for buffered streams:

auto buf = stream.peek(length)
// You can now look at the data in buf
stream.read() will still return the data read by peek, no need to write
data back into the stream.


With the notable exception of ungetc() for C's file streams. But working on the byte level is something that ranges should be used for in D's case and not streams, because the latter tend to have a high call overhead. So such a feature could make sense for a StreamInputRange/InputStreamRange wrapper.

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