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From: Martin Gregorie <martin@address-in-sig.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: [OT] Re: missing import java.lang.Comparable
Date: Sun, 10 Jul 2016 10:34:29 -0000 (UTC)
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On Sat, 09 Jul 2016 21:52:28 -0400, Arne Vajhøj wrote:

> On 7/9/2016 9:11 PM, Martin Gregorie wrote:
>> On Sat, 09 Jul 2016 20:09:23 -0400, Arne Vajhøj wrote:
>>> It is one of these things I would just leave to the compiler/VM/RT.
>>>
>> You can't, because that rules out program portability.
> 
> If data type X has its behavior defined by the specs, then the
> compiler/VM/RT should be able to change the implementation all it want
> as long as it maintains documented behavior.
>
Yes, and as Eric pointed out recently, there's a good example of this in 
Java: the current (1.8) BigDecimal implementation stores values in a long 
and the implied decimal point as an int scale factor.


-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |