||= sets the variable on the left to the value on the right if it is not already |defined.
&&= I would *guess* sets the value on the variable on the left to the value on the right if it is defined, but not if it is not defined, so I guess for when you want to replace something but not define it (which is probably followed by some ugly code). But then I am like you and I have a C Bible but don't grok C. Probably because I took at least one CS class in college... http://danconia.org ------------------------------------------------ On Mon, 09 Dec 2002 12:48:27 -0500, "Geoffrey F. Green" <[EMAIL PROTECTED]> wrote: > Here's a real beginners question: > > What do the assignment operators "||=" and "&&="do? I understand "+=" and > "-=" and the like;, but I can't figure out what these two do. > > Perldoc perlop isn't much help, saying only that they "work as in C", and my > copy of "The C Programming Language" -- don't ask why I have it, since I've > never programmed in C -- doesn't shed any light on it. > > Thanks. > > - geoff > > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
