On 09/17/2014 12:46 PM, SSC_perl wrote:
> On Sep 16, 2014, at 6:58 PM, <sisyph...@optusnet.com.au>
> <sisyph...@optusnet.com.au> wrote:
>> Are you sure you've quoted the code (that's producing the warning) correctly?
>
> Yes, I did. I double-checked it just to be certain. However, I ran
> the code by itself and it doesn't produce that warning, so it must be
> something upstream that's causing it.
>
> Thanks,
> Frank
The code
if (' ') { ... } will execute the block.
The code
if ('') { ...} will not
Neither ' ' nor '' are numeric, so using them in an arithmetic
expression will generate a warning.
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