Re: chaining defines

Jenda Krynicky wrote:
> From: Robert Hicks <[email protected]>
>> Is there anything wrong with:
>>
>> if ( defined $one && defined $two && $one eq $two ) {
>>     #### do something
>> }
> 
> As far as I can tell not. I was afraid the operator precedence might 
> play tricks with it, but looks like it doesn't:
> 
> V:\>perl -MO=Deparse -e "defined $one && defined $two && $one eq 
> $two"
> $one eq $two if defined $one and defined $two;
> -e syntax OK
> 
> V:\>perl -MO=Deparse -e "if(defined $one && defined $two && $one eq 
> $two) {print 'aha'}"
> if (defined $one and defined $two and $one eq $two) {
>     print 'aha';
> }
> -e syntax OK
> 
> I would write it as 
> 
>   if ( defined($one) && defined($two) && $one eq $two ) {
> 
> or even more likely as 
> 
>   if ( defined($one) and defined($two) and $one eq $two ) {
> 
> but it seems your version is just fine.
> 
> Jenda
> 

Thanks very much for the corroboration.

Robert