h2o/qrintf — pull request #10 by imasahiro (2014-12-02 02:10:46+00:00)
Title: hoist boundary check code to the out of loop

Current implementation of sprintf(..., "%x",...) always execute boundary check.
(e.g. https://github.com/h2o/qrintf/blob/master/share/qrintf/qrintf.h#L1321)

This pull request hoists this check to the out of loop to simplify main code of hexadecimal to string conversion.