in reply to Re^2: Converting a list of numbers to use a range operator
in thread [Solved] Converting a list of numbers to use a range operator
> but why does this push @a,"inf" work?
inf and -inf are special numeric constants
DB<159> $a=inf => "inf" DB<160> --$a => "inf" DB<161> ++$a => "inf"
in this case they are handy, because $now+1 == inf won't raise a warning
DB<116> use warnings;5=="inf" => "" DB<117> use warnings;5=="WhatEver" Argument "WhatEver" isn't numeric in numeric eq (==) at (eval 47)[mult +i_perl5db.pl:644] line 2.
> Where is this "inf" documented?
no idea, I scanned the perldocs for X<inf> w/o success.
see also Infinity and Inf?
Cheers Rolf
( addicted to the Perl Programming Language)
UPDATE: deleted wrong example about incrementing inf
|
---|
In Section
Seekers of Perl Wisdom