In the absence of confirmation from someone looking at the engine code, I
wrote a test. Here are two handlers, with comments explaining what I think
is going on:
on mouseUp
put 1 into X -- X is a number
put 1 into Y -- Y is a number
put the long seconds into T
repeat 9999999
put X into Z -- Z is a number, no conversion
add Z to Y -- Z is a number, no conversion
end repeat
put the long seconds - T
end mouseUp
on mouseUp
put "1" into X -- X is a string
put 1 into Y -- Y is a number
put the long seconds into T
repeat 9999999
put X into Z -- after the first loop, each time Z has to convert back
to a string
add Z to Y -- Z has to be converted to a number
end repeat
put the long seconds - T
end mouseUp
On my mac, the second handler consistently takes 10% longer to run. Since
the handlers are otherwise identical, I have to think string conversion is
causing the slowdown, and that in the first handler, nothing is being
stored as a string.
gc
On Sat, Sep 14, 2013 at 11:08 PM, <dunb...@aol.com> wrote:
> Geoff.
>
>
> I could be misRemembering, possibly even in an earlier life (HC), that
> variable typing was done by the interpreter at runtime, or in HC 2, at
> compile time.
>
>
> Maybe this was changed in LC? Someone here must know...
>
>
> Craig
>
>
>
> -----Original Message-----
> From: Geoff Canyon <gcan...@gmail.com>
> To: How to use LiveCode <use-livecode@lists.runrev.com>
> Sent: Sat, Sep 14, 2013 9:10 pm
> Subject: Re: Trying a custom handler for several math fields
>
>
> (We agree on all your other points)
>
> I remember reading many years ago on this mailing list that if you assign a
> number to a variable:
>
> put 52 into x
>
> LC stores that variable as a number from the get-go and only converts it
> to a
> string if needed.
>
> Sent from my iPad
>
> On Sep 14, 2013, at 9:22 AM, dunb...@aol.com wrote:
>
> > If you add a number to "50", it is then that the engine types the string
> as a
> number.
>
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