Re: Variable division, assignment and sprintf in one line

From: Steve Bertrand <iaccounts@xxxxxxxxxx>
Hi again all,

Is there a way that one can use sprintf on a variable and assign the
value back to the variable without having the leading $var= ?

$var = sprintf ("%.2f", (($var /=1024) /=1024)))

What the ...?!?

/= ?

You divide the value of $var by 1024, assign it back to $var, divide
it by another 1024, assign it again to $var, then format the
resulting number using sprinf() and assign it to $var?!? Why???

$var = sprintf ("%.2f", (($var / 1024) / 1024));

will do the same as will

$var = sprintf ("%.2f", $var / (1024*1024));

And it will be more efficient because the multiplication will be done
at compile time (once) and you'll only do a single division each
time. Which is also more precise, though in this case it doesn't seem
to matter.

Jenda
===== Jenda@xxxxxxxxxxx === http://Jenda.Krynicky.cz =====
When it comes to wine, women and song, wizards are allowed
to get drunk and croon as much as they like.
-- Terry Pratchett in Sourcery

.

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