Re^2: can't modify anonymous hash ({}) in scalar assignment

Yes, I apologize. I wrote the post and then deleted lines of code I had inserted for debugging but were not necessary for this. The line you mention was the problem one.

And you were right about the syntax, too!. I thought => was for pointers and -> was for subs. I guess I should google that.

Thanks!

Comment on Re^2: can't modify anonymous hash ({}) in scalar assignment

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Re^3: can't modify anonymous hash ({}) in scalar assignment by Anonymous Monk on Jul 26, 2010 at 16:06 UTC
Comma Operator The "=>" operator is a synonym for the comma except that it causes its left operand to be interpreted as a string if it begins with a letter or underscore and is composed only of letters, digits and underscores. The Arrow Operator ""->"" 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.	[reply]

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Re^3: can't modify anonymous hash ({}) in scalar assignment
by Anonymous Monk on Jul 26, 2010 at 16:06 UTC

Comma Operator

    The "=>" operator is a synonym for the comma except that it causes its
    left operand to be interpreted as a string if it begins with a letter or
    underscore and is composed only of letters, digits and underscores.
The Arrow Operator
    ""->"" 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.

[reply]