Re^2: Infinity and Inf?

> It's not a symbol (not a constant or function).

hmm strange:

  DB<8> print 5+Inf
inf
  DB<9> use strict;print 5+Inf
Bareword "Inf" not allowed while "strict subs" in use at (eval 13)[/us
+r/share/perl/5.10/perl5db.pl:638] line 2.
[download]

Cheers Rolf

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Re^3: Infinity and Inf? by ikegami (Patriarch) on Aug 31, 2010 at 18:02 UTC
How is that weird? Barewords are autoquoted when strict doesn't prevent it. `$ perl -E'$x=abc; say $x' abc $ perl -E'$x=Inf; say $x' Inf` [download] Nothing special there. Like I said, only its numification is special. `$ perl -E'$x=Inf; say 0+$x' inf` [download]	[reply] [d/l] [select]
Re^4: Infinity and Inf? by LanX (Saint) on Aug 31, 2010 at 18:09 UTC
> How is that weird? `DB<10> print 5+abc 5 DB<11> print 5+Inf inf` [download] So Inf is a kind of dualvar but not a constant? Strange... Cheers Rolf	[reply] [d/l]
Re^5: Infinity and Inf? by ikegami (Patriarch) on Aug 31, 2010 at 18:37 UTC
You find it strange that "abc" numifies to zero? So Inf is a kind of dualvar but not a constant? No. Like I said in my last two posts, "Inf" (numifies to inf) is a string just like "5" (numifies to 5), "abc" (numifies to 0) and "5E1" (numifies to 50).	[reply]