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Re: expression evaluation problem

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  Re: expression evaluation problem Ilkka Virta <itvirta@iki.fi> - 2019-07-25 21:15 +0300

#15247 — Re: expression evaluation problem

On 24.7. 21:43, L A Walsh wrote:
>      Does it improve execution time?  That's more of a concern here than
> readability, since it is an expression fragment, it isn't meant to be
> understood
> in isolation.
[...]
>      The important part for me is whether or not it is faster to perform
> 1 calculation, or 100.  So which would be faster?  In this case
> execution speed
> is more important than clarity.  I consider that a 'constraint'.

Shouldn't it be easy enough to measure how much restructuring that 
expression affects the execution speed?

Also, regarding execution speed, I've been led to believe that the shell 
in general is rather slow, and almost any other language would be better 
if that is of concern. (awk, Perl, what have you.)


-- 
Ilkka Virta / itvirta@iki.fi

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