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int_of_string bug
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Date: | 2007-03-30 (08:44) |
From: | skaller <skaller@u...> |
Subject: | Re: [Caml-list] int_of_string bug |
On Fri, 2007-03-30 at 09:30 +0200, Florian Weimer wrote: > * Yaron Minsky: > > > That's a problem too, but there is at least a defensible reason for > > that, which is that it is expensive to get integer overflow to throw > > an exception. > > i386 and amd64 have hardware support for that, so it's not very > expensive. There are pretty short RISC sequences for the checks, too. > > MLton uses the i386 hardware support, and I think you can disable the > checks, so measuring the overhead shouldn't be too hard. But there is a difference you may have missed: Ocaml integers are 31 or 63 bits, not 32 or 64 bits. -- John Skaller <skaller at users dot sf dot net> Felix, successor to C++: http://felix.sf.net