Name
try_eval
- try_eval
code catch
[finally
] Evaluate the command string
code
. If an error occurs, evaluatecode
and return the result. Last, execute the command stringfinally
.
Example
try_eval { # code puts -nonewline stderr "Enter a number: " set ans [gets stdin] # could fail, e.g. due to divide by zero set res [expr 1.0 / $ans] puts stderr "1 / $ans = $res" } { # catch set msg [lindex $errorCode end] puts stderr "Error: $msg" } { # finally puts stderr "End of example" }
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