Path: utzoo!utgpu!cunews!bnrgate!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request
From: luke@research.canon.oz.au (Luke Kendall)
Newsgroups: comp.sys.sun
Subject: Large shifts (was: Bug in compilers)
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Message-ID: <4146@brchh104.bnr.ca>
Date: 27 Jun 91 20:22:00 GMT
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X-Original-Date:    Thu, 20 Jun 1991 03:28:24 GMT

Sigh.  Wrong again.  Yes, even in ANSI it's undefined.  My problem is
that I can hardly believe that this sort of semantic discontinuity can
exist; and that the ANSI committee chose not to fix it.

I assume it's happened because some chips (e.g. SPARC) don't internally
mask the shift operand, and you want the normal case (of a shift) to not
incur the overhead.  Sad.

(I mean, it is a pretty clean language, implicit & on arrays and functions
 aside).
-- 
Luke Kendall, Senior Software Engineer.      | Net:   luke@research.canon.oz.au
Canon Information Systems Research Australia | Phone: +61 2 805 2914
P.O. Box 313 North Ryde, NSW, Australia 2113 | Fax:   +61 2 805 2929