K 10
svn:author
V 3
imp
K 8
svn:date
V 27
2019-07-15T23:43:38.109625Z
K 7
svn:log
V 314
Use a different approach to range check.

gcc hates dt < CC_DT_NONE since it can never be true when dt is an unsigned
type. Since that's a compiler choice and may be affected by weird stuff, instead
use (unsigned)dt > CC_DT_UNKNOWN to test for bounds error since that will work
regardless of the signedness of dt.

END