Re: Re: Answer: How to identify a number datatype in a string?

Add the following after if(@){}, and you will see...

  else { print "number: ", $test , "\n"; }
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...Apparently, $test is assigned zero (perl 5.8.0) when $number is not a number. Ergo, no errors in eval, no print.

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Re: Re: Re: Answer: How to identify a number datatype in a string? by hossman (Prior) on May 30, 2003 at 22:19 UTC
Acctually, `$test` is assigned `$number` regardless of what `$number` is ... if you do any mathematicly operations on a scalar which is "not a number" then that scalar is evaluated as "0" (and a warning is generated). Which was basicly my point ... the whole premese of this test is flawed. (uless you set up a signal handler for warnings, which causes a "die" to be thrown)	[reply] [d/l] [select]
Re: Re: Re: Re: Answer: How to identify a number datatype in a string? by parv (Parson) on May 31, 2003 at 07:55 UTC
Ah, ok then. Goal of your earlier post was not quite clear to me originally.	[reply]