Re: Numification of strings

When you ask for the numeric value of something that isn't a number, it does the best it can and gives a warning.

Comment on Re: Numification of strings

Replies are listed 'Best First'.
Re^2: Numification of strings by LanX (Saint) on Aug 02, 2010 at 11:43 UTC
... and gives a warning. ah, thank you! I missed there are warnings while testing in the debuggerš! However this gives me the possibility to change `$SIG{__WARN__}` to deal with this kind of errors...e.g. by dieing. Cheers Rolf 1)~~... hmm but why?~~ UPDATE: OK starting the debugger with -w switch helps. `:~$ perl -w -de0 ... DB<1> $x="6gg" DB<2> p -$x Argument "6gg" isn't numeric in negation (-) at (eval 6)[/usr/share/pe +rl/5.10/perl5db.pl:638] line 2. ...` [download]	[reply] [d/l] [select]

Replies are listed 'Best First'.

Re^2: Numification of strings
by LanX (Saint) on Aug 02, 2010 at 11:43 UTC

... and gives a warning.

ah, thank you!

I missed there are warnings while testing in the debuggerš!

However this gives me the possibility to change $SIG{__WARN__} to deal with this kind of errors...e.g. by dieing.

Cheers Rolf

1)~~... hmm but why?~~

UPDATE:

OK starting the debugger with -w switch helps.

:~$ perl -w -de0
...
  DB<1>  $x="6gg"
 
  DB<2> p -$x
Argument "6gg" isn't numeric in negation (-) at (eval 6)[/usr/share/pe
+rl/5.10/perl5db.pl:638] line 2.
...
[download]

[reply]
[d/l]
[select]

In Section Seekers of Perl Wisdom