Page 192 of JforC_2006_01_25 said,
>An Exception: Modifiers that Do Not Refer to u. or v.
>In very early versions of J, modifiers could not refer to their x. and y.
operands. In
>those days, a modifier used the names x. and y. to mean what we now mean by u.
and
>v. . Modern versions of J continue to execute the old-fashioned modifiers
correctly by
>applying the following rule: if a modifier does not contain any reference to
u., v., m.,
>or n., it is assumed to be an old-style modifier, and references to x. and y.
are treated
>as if they were u. and v. . You may encounter old code that relies on this
rule, but you
>should not add any new examples of your own.
As there are incompatible change (x y u v m n) in J601, will it be the right
time kill this exception?
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
