sleep()ing less than a second

[Jeffery Bacon]

Given sleep(arg); unsigned arg. Nothing new.
But what if you want to sleep for less than one second, say, 0.5?
(Why isn't terribly important here.)

(Please email replies; I don't read comp.lang.c much, and I'm behind in my
reading anyway...thanx.)
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Jeffery Bacon -- Computing Technology Svcs., Michigan Technological University
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