pthread/crf.cpp: prefer prefix ++operator for non-primitive types
pthread/crf.cpp: prefer prefix ++operator for non-primitive types

Signed-off-by: Danny Al-Gaaf <473e39ac77cf392f0dd9bacde8409de76c14d006@bisect.de>

hoehnp/sirius,claritylab/sirius,claritylab/sirius,claritylab/sirius,claritylab/sirius,hoehnp/sirius,hoehnp/sirius,claritylab/sirius,hoehnp/sirius,hoehnp/sirius,hoehnp/sirius,hoehnp/sirius,claritylab/sirius,claritylab/sirius