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| From | Michael Jung <miju@golem.phantasia.org> |
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Possible loss of precision |
| Date | Fri, 15 Nov 2013 19:24:47 +0100 |
| Organization | albasani.net |
| Lines | 18 |
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Gene Wirchenko <genew@telus.net> writes: > On Thu, 14 Nov 2013 20:39:42 +0100, Michael Jung > <miju@golem.phantasia.org> wrote: >>ram@zedat.fu-berlin.de (Stefan Ram) writes: [...] >>> But then, »int i = 2.0;« gives an error, even though the >>> compiler should see that »2.0« can be represented as an int. >>You are right that x+1 is "promoted" to int and the second assignment >>fails. In the other cases the compiler will follow JLS 15.28 => 5.2. >>This concerns constant expressions first and the second allows a >>narrowing in rare cases, of which the first line is one but the >>"int i = 2.0" isn't. > Why isn't it though? Since compile-time constant expressions are FP-strict and could be done, I guess it was seen as pathological and not worth the effort. Michael
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Re: Possible loss of precision Michael Jung <miju@golem.phantasia.org> - 2013-11-14 20:39 +0100
Re: Possible loss of precision Gene Wirchenko <genew@telus.net> - 2013-11-14 15:03 -0800
Re: Possible loss of precision Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-11-14 18:31 -0500
Re: Possible loss of precision Joerg Meier <joergmmeier@arcor.de> - 2013-11-15 00:55 +0100
Re: Possible loss of precision Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-11-14 20:19 -0500
Re: Possible loss of precision taqmcg@gmail.com - 2013-11-15 07:01 -0800
Re: Possible loss of precision Martin Gregorie <martin@address-in-sig.invalid> - 2013-11-15 21:36 +0000
Re: Possible loss of precision Michael Jung <miju@golem.phantasia.org> - 2013-11-15 19:24 +0100
Re: Possible loss of precision Patricia Shanahan <pats@acm.org> - 2013-11-15 20:48 -0800
Re: Possible loss of precision Michael Jung <miju@golem.phantasia.org> - 2013-11-17 13:28 +0100
Re: Possible loss of precision Patricia Shanahan <pats@acm.org> - 2013-11-17 08:05 -0800
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