[M3commit] CVS Update: cm3

[Jay Krell]

CVSROOT:	/usr/cvs
Changes by:	jkrell at birch.	10/06/21 07:05:56

Modified files:
	cm3/m3-libs/m3core/src/Csupport/Common/: hand.c 

Log message:
	add back all four div/mod helpers for Posix, through rewritten
	to use unsigned arithmetic and not depend on silent signed wraparound
	
	Floor div/mod is a fairly target-specific and under used part of gcc
	and I am now nervous to depend upon it. Perhaps do more research
	though and trust it.