while(n) Tcl Built-In Commands while(n)_________________________________________________________________NAMEwhile - Execute script repeatedly as long as a condition
is met
SYNOPSISwhile test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the
same way that expr evaluates its argument). The value of
the expression must a proper boolean value; if it is a
true value then body is executed by passing it to the Tcl
interpreter. Once body has been executed then test is
evaluated again, and the process repeats until eventually
test evaluates to a false boolean value. Continue com-
mands may be executed inside body to terminate the current
iteration of the loop, and break commands may be executed
inside body to cause immediate termination of the while
command. The while command always returns an empty
string.
KEYWORDS
boolean value, loop, test, whileTcl 1