[squeak-dev] Re: [Vm-dev] Re: [Pharo-project] About ~= and ~~

[Andreas Raab]

On 10/12/2011 22:20, Eliot Miranda wrote:
>
> On Wed, Oct 12, 2011 at 1:19 PM, Colin Putney <colin at wiresong.com 
> <mailto:colin at wiresong.com>> wrote:
>
>
>     On Wed, Oct 12, 2011 at 1:16 PM, Eliot Miranda
>     <eliot.miranda at gmail.com <mailto:eliot.miranda at gmail.com>> wrote:
>     > People avoid it because of performance.  But I much prefer foo
>     ~~ bar ifTrue: than foo == bar ifFalse:.  So I suspect/hope
>     dynamic frequency will grow as people find its not such a
>     performance issue any more.
>
>     Well, no accounting for taste, I guess. I'd avoid it because I much
>     prefer foo == bar iFalse:
>
>
> But why, if it doesn't express intent directly?  It's cognitively more 
> difficult.  You have to negate to get the intent.

It's really the same either way. My main reason for disliking ~= and ~~ 
is that both of these are aesthetically unpleasing. I'd much rather see 
<> instead of ~= and perhaps <==> instead of ~~.

Cheers,
   - Andreas

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