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Postings from January 2012
On 2012-01-05 23:58, Robert Colvin via RT wrote:
> in testing existence
> the state of variables are
> modified. exists should be a safe
> operation and it is therefore
> reasonable to expect that it
> won't make any modifications
Reminds me:
This also changes the state of $a:
my $a = "2";
...;
print "yes" if $a > 0;
If that $a is on a shared memory page, and that numeric test happens in
a child process, it will probably cause the memory page to be really
copied. Which can eat RAM fast.
--
Ruud
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