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List:       e-lang
Subject:    [e-lang] Equality of mappings in E
From:       David-Sarah Hopwood <david.hopwood () industrial-designers ! co ! uk>
Date:       2009-03-11 9:36:13
Message-ID: 49B7860D.6090701 () industrial-designers ! co ! uk
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[moved from google-caja-discuss]

Mark S. Miller wrote:
> David-Sarah Hopwood <david.hopwood@industrial-designers.co.uk> wrote:
>> Mark S. Miller wrote:
>>> The corresponding cases in E without quasis:
>>>
>>>     ? ["a" => 1, "b" => 2] == ["b" => 2, "a" => 1]
>>>     # value: false
>>>
>>> They aren't equal because they are different.
>> I'm surprised. The ASTs of the left- and right-hand sides are certainly
>> different, but this is testing whether the values are the same.
>> Why aren't the values the same?
>>
>> [Feel free to move this to e-lang.]
> 
> Because their enumeration order is different.

Ah. Presumably you considered enumerating in key-sorted order --
what were the reasons for not doing that?

-- 
David-Sarah Hopwood ⚥

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