Hi,

In message "[ruby-talk:02118] ARGF vs. $<"
    on 00/03/23, Dave Thomas <Dave / thomases.com> writes:

|Apart from the naming convention, is there a reason that ARGF is
|documented as a global constant and $< as a global variable? They both 
|reference the same object, and effectively have the same semantics. Am 
|I missing something subtle here?

They are same in semantics, but syntactically, $< is a read-only
special variable, and ARGF is a constant.  In reference manual, I
cannot ignore syntactical difference.

							matz.