chdir($g_var->{g_loc});
I found this line in some perl code I am working with and I could not figure out what the ->
means. I me
This is what you get if you search for perlop (perl operators) on http://perldoc.perl.org. Perldoc, the on-version of it has undergone major improvements and frankly from all reference doc I like this the best.
"
->
" is an infix dereference operator, just as it is in C and C++. If the right side is either a[...]
,{...}
, or a(...)
subscript, then the left side must be either a hard or symbolic reference to an array, a hash, or a subroutine respectively. (Or technically speaking, a location capable of holding a hard reference, if it's an array or hash reference being used for assignment.) See perlreftut and perlref.Otherwise, the right side is a method name or a simple scalar variable containing either the method name or a subroutine reference, and the left side must be either an object (a blessed reference) or a class name (that is, a package name). See perlobj.