Interestingly, you can assign to $^T...

perl -le'$^T=42;print($^T)'

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I've tested this in Perl 5.6.2, 5.8.9, and 5.20.0 with the same results. However, $^T is quite magic. You can assign a floating point number to it, but it will be rounded to an integer:

perl -le'$^T=42.3;print($^T)'

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What's happening there? Well, the floating point number is actually stored correctly in Perl's SV structure. However any fetch will just get the integer instead.

perl -MDevel::Peek -le'$^T=42.3;Dump($^T)'

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So even if you wrote a module to capture a more precise time, it couldn't be stored in $^T because that scalar is too magic.

use Moops; class Cow :rw { has name => (default => 'Ermintrude') }; say Cow->new->name

In reply to Re: Higher resolution $^T? by tobyink
in thread Higher resolution $^T? by Anonymous Monk

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