Re^3: Exploiting Perls idea of what is a number

Under the influence of use warnings FATAL => qw(numeric);

Actually, just writing use warnings; is sufficient. Example:

use strict;
use warnings;
my $value="abc";
my $t=eval { 0+$value };
print "$@\n";
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prints Argument "abc" isn't numeric in addition (+) at U:\develsv\ARTS\playground\eval_test1.pl line 4.

--
Ronald Fischer <ynnor@mm.st>

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Re^4: Exploiting Perls idea of what is a number by kyle (Abbot) on Jul 08, 2008 at 15:00 UTC
It does print that, but not because `$@` is set. Here's a slight modification: `use strict; use warnings; my $value="abc"; my $t=eval { 0+$value }; print "OMG: $@\n"; __END__ Argument "abc" isn't numeric in addition (+) ... OMG:` [download]	[reply] [d/l] [select]
Re^5: Exploiting Perls idea of what is a number by rovf (Priest) on Jul 09, 2008 at 06:48 UTC
It does print that, but not because $@ is set. Here's a slight modification: Now I can see it! Of course it is printed because it is a warning, not an exception. Now the explanations of moritz and ikegami finally become clear! Strange - I should have seen this immediately by myself :-( Thanks a lot for the clarification. -- Ronald Fischer <ynnor@mm.st>	[reply]