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variable not getting unset

2003-07-24T04:13:19-04:00

Code:

set bigjointimer($chan) [utimer 4 [list array unset arrchnck $chan:$bjmask ]]

Statistics: Posted by Papillon — Thu Jul 24, 2003 4:13 am

variable not getting unset

2003-07-24T03:23:52-04:00

Hi,

ppslim I tried:

Code:

set bigjointimer($chan) [utimer 4 [list unset arrchnck($chan:$bjmask) ]]

but the variable is still not getting unset. As for caesar's point, I am not sure how to use that array unset method.

Statistics: Posted by z_one — Thu Jul 24, 2003 3:23 am

variable not getting unset

2003-07-18T05:31:51-04:00

A variable exist only while its parent function is active.

Global variables (global is treated like a procedure in Tcl, though one your return, it exits), exist while global is running.

Anything in a procedure is created when needed, and destroyed on exit of the procedure.

Though, obviously, if you create a variable in a procedure, that you have declared as global, the global environment becomes the parent. This means it is only destroyed on exiting global.

The exception to the above, is specificly killing a variable using unset.

Statistics: Posted by ppslim — Fri Jul 18, 2003 5:31 am

variable not getting unset

2003-07-18T04:11:32-04:00

Is it nessesery to unset all variables used in a tcl procedure like in other program languages or where in execution procedure is leaved variables is all unset automatically?

Statistics: Posted by stammer — Fri Jul 18, 2003 4:11 am

variable not getting unset

2003-07-17T16:12:44-04:00

that's an array, and unset it like this:

Code:

array unset arrchnck $chan $bjmask

or something like this anyway, I think..

Statistics: Posted by caesar — Thu Jul 17, 2003 4:12 pm

variable not getting unset

2003-07-17T16:11:07-04:00

Code:

set bigjointimer($chan) [utimer 4 { unset arrchnck($chan:$bjmask) }]

Tcl doesn't evaluate code within curly braces unless you pass it to a command that evaluates it. It would need to do this on the spot to function with the variables.

Try using

Code:

set bigjointimer($chan) [utimer 4 [list unset arrchnck($chan:$bjmask) ]]

So that the variables are evaluated on the spot correctly.

Statistics: Posted by ppslim — Thu Jul 17, 2003 4:11 pm

variable not getting unset

2003-07-17T15:31:55-04:00

Hi,

What's wrong with this code, why isn't the variable arrchnck($chan:$bjmask) being unset ?
It's always incremented .... it never gets unset 4 seconds later.
note: bigjointimer is declared as a global variable.

Code:

  if {![info exists arrchnck($chan:$bjmask)]} {     set arrchnck($chan:$bjmask) 1    set bigjointimer($chan) [utimer 4 { unset arrchnck($chan:$bjmask) }]  } else {    set arrchnck($chan:$bjmask) [expr $arrchnck($chan:$bjmask) + 1]  }

Statistics: Posted by z_one — Thu Jul 17, 2003 3:31 pm