Compiler output type

From	"Harvey P. Dale" <hpd@hpdale.org>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Compiler output type
Date	2014-05-12 04:43 +0000
Message-ID	<lkpjh9$lkk$1@smc.vnet.net> (permalink)
Organization	Time-Warner Telecom

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	Some compiled functions yield reals even if the input and necessary output are integers.  How can I force the output to be an integer rather than a real in such cases?  To be clear, not all compiled program output produces reals; some compiled programs, given integer inputs, produce integer outputs.  But some do not.  An example is:

collatz = Compile[{{n, _Integer}}, If[EvenQ[n], n/2, 3 n + 1]]

It produces real rather than integer output, and I'd like to force integer output if possible.

	Thanks

	Best,

	Harvey

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Compiler output type "Harvey P. Dale" <hpd@hpdale.org> - 2014-05-12 04:43 +0000

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