Separated CIN input with NO separators

Question

So, the question is as follows: I have an input data, loaded into cin, which (data) has no separators at all and consists of 2-dig. hex numbers, for ex:

ab2b6f //here it is ab 2b 6f 

Is it possible to separate them without buffering? I do not want to waste a memory, 'cause inputs can be really long;

UPD: solved by using 2-char buffer.

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Answer 1

You may set an input buffer as described here: How to get IOStream to perform better? and then istream::read(...) an exact number of bytes from the stream.