Forum Discussion
Erik_27939
Nimbostratus
NimbostratusHow do you handle a null variable in an irule?
I am using the below logic:
if { [string length $sort_dest_pool] > 0 } {
set dest_pool [string trimleft $sort_dest_pool "$loc"]
} else {
set dest_pool $orig_pool
}
...
can you try to remove $?
e.g.
% info exists t 0 % set t 1 1 % info exists t 1
Erik_27939Nimbostratus
NimbostratusUnfortunately, now I am getting this error:
can't read "sort_dest_pool": no such variable while executing "info exists $sort_dest_pool"
Based on that man page you sent on that command, it should have worked. Thoughts?
