$x = $y * 16;

[download]
Any good compiler would optimise this for you into this 
$x = $y << 4;

[download]
C and C++ compilers do it automaticaly in the preprocessor. I don't see why Perl wouldn't do it either unless that it was seen that it wasn't needed or that it hasn't been put in yet.

BMaximus

In reply to Re: Re: Optimizations and Efficiency by BMaximus
in thread Optimizations and Efficiency by dimmesdale

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