Hi

could someone point me to a good source where and how the constants Inf and Infinity can be used in Perl?

I tried to define a lazy iteration and I know that I can redefine the constant for my needs

  DB<6> $x=0;for (1..Inf) { print; last if $x++ >5} 
Range iterator outside integer range at (eval 10)[/usr/share/perl/5.10
+/perl5db.pl:638] line 2.
 
  DB<7> sub Inf() {1000}
 
  DB<8> $x=0;for (1..Inf) { print; last if $x++ >5} 
1234567

[download]

But I would be interested to know the canonical/intended way to use those constants, before messing around with internals!

Unfortunately grepping thru the perlocs didn't show much information.

It seems to be a feature of Math::BigInt but why can I see the constant without using BigInt???

There are also confusing references to a IEEE 754 standard. In JS a division by zero results to Infinity, but in Perl it's an error?

Please enlighten me about what is happening here...

Cheers Rolf

In reply to Infinity and Inf? by LanX

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