Re: one of these codes is not like the other

Replies are listed 'Best First'.
Re: Re: one of these codes is not like the other by speedo (Initiate) on Jul 17, 2001 at 01:07 UTC
I followed your suggestion, and ended up with 20 or so: Global symbol "%blahblah" requires explicit package name. so I remedied this by adding "my"'s to my variables. But there's a syntax error I don't get: it's near "$specieslist{" of the following line of code: `unless (my $speciesname eq (my specieslist{$entry})) {` [download] And then the pgm is aborted due to compilation errors. Does anyone see fundamental problems with that line? Thanks again -speedo	[reply] [d/l]
Re: Re: Re: one of these codes is not like the other by runrig (Abbot) on Jul 17, 2001 at 01:25 UTC
`unless (my $speciesname eq (my specieslist{$entry})) {` You don't blindly put my in front of every variable. It is a way to declare variables, so you only put it in front of the first use of a variable (and in a scope where every other use can 'see' it). First, 'specieslist' is a hash, so somewhere you would have 'my %specieslist;' or 'my %specieslist = ....;'. and so speciesname and specieslist in your clause above would not have a my. And your clause above also has another typo, the lack of a '$' in front of specieslist (but I'm just assuming that's just a typo here from your error message). FYI, you are declaring a new lexical variable '$speciesname' above, which is only scoped (it only exists) in the 'unless' block, and it has an undefined value. Update: Just noticed this node that might help.	[reply] [d/l]


No such thing as a small change
	PerlMonks