From: Marc-Andre Lafortune <redmine@...>
Date: 2009-11-10T10:19:30+09:00
Subject: [ruby-core:26656] [Feature #2347] Math::INFINITY

Issue #2347 has been updated by Marc-Andre Lafortune.


I'm quite ignorant about the differences between compilers and implementations (and I wouldn't mind remaining this way! ;-)

The fact is, Ruby _already_ generates infinities. Line 2471 of numeric.c:

#define infinite_value() ruby_div0(1.0)

It's used in fix_pow.

I think there is a C macro called INFINITY also:
http://www.gnu.org/software/libtool/manual/libc/Infinity-and-NaN.html

If it is still an imperative that Ruby supports non IEEE architectures, then maybe that constant could be conditional on that?

I do not want to judge the decision to support an old platforms or not. I think it would be sad if Ruby was kept back because of supporting them though.
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