:   '''namespace upvar''' ''namespace otherVar myVar'' ?''otherVar myVar ...''?

The '''[namespace] upvar''' command creates a link (just like [upvar]) from each of the named ''otherVar''s in ''namespace'' to the ''myVar''s in the current context (i.e., stack frame or namespace). All the ''otherVar''s must be unqualified.

Note that these are equivalent:
======
set ns ::foo
upvar #0 ${ns}::bar boo
======
and
======
set ns ::foo
namespace upvar $ns bar boo
======
However, the second form is more efficient, as requires less string manipulation and parsing.

<<discussion>>
[DKF]: This command was created to help accelerate [Snit].

<<categories>> Command