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Message: [QUOTE="Kenneth Brody, post: 2459913"] That "works" is you have 5-bit ints. And 16-bit longs. I don't think ke doesn't want the least-significant bits -- it sounds more like he wants the most-significant bits. (At least, that's what it appears he wants. Maybe. Perhaps.) Or, maybe he's not sure what he wants. How about something like: ( foo >> ( (sizeof(foo) * CHAR_BITS) - 4 ) ) & 0x0f Am I correct that "sizeof(foo)*CHAR_BITS" gives you the number of bits in "foo"? -- +-------------------------+--------------------+-----------------------------+ | Kenneth J. Brody | [URL="http://www.hvcomputer.com"]www.hvcomputer.com[/URL] | | | kenbrody/at\spamcop.net | [URL="http://www.fptech.com"]www.fptech.com[/URL] | #include <std_disclaimer.h> | +-------------------------+--------------------+-----------------------------+ Don't e-mail me at: <mailto:ThisIsASpamTrap@gmail.com> [/QUOTE]