proc ?lappend {v_name args} {
upvar $v_name v
if {![info exists v]} {
return -code error "expected $v_name to exist!"
}
foreach val $args {
lappend v $val
}
}MG - How does this differ from lappend? Unless I'm missing something (quite possible;) it seems to work exactly the same. . .
schlenk - It errors out if the var does not exist. The original lappend does not, it creates the variable.