Re: What is this?
Re: What is this?
- Subject: Re: What is this?
- From: Nigel Garvey <email@hidden>
- Date: Mon, 28 Feb 2005 11:17:21 +0000
- Delivered-to: email@hidden
- Delivered-to: email@hidden
deivy petrescu wrote on Sun, 27 Feb 2005 21:26:52 -0500:
>On Feb 27, 2005, at 18:53, Nigel Garvey wrote:
>> It seems to be
>> something to do with coercions and the fact that '(text item 2 of "9")'
>> is a reference.
>> If you multiply it by 1 rather than 1 by it, the expected
>> error occurs on all three systems.
>>
>
>Actually it does not happen with division no matter "where" you divide
>
>1/(text item 2 of "9") --> error as expected
>
>
>(text item 2 of "9")/1 --> error as expected
Maybe only automatic coercions from reference to number-of-unknown-class
(after an operator) are susceptible to the effect you've discovered. '/'
does exclusively real operations, so it already knows that it wants the
reference coerced to real. Other operators apparently only make up their
minds when they know if they're doing a real or integer operation. cf:
1 div (text item 2 of "9") --> 0
1.0 div (text item 2 of "9") --> error
1 * (text item 2 of "9") --> 3.31595369888126E-301
1.0 * (text item 2 of "9") --> error
NG
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