ns_adp_exception - Examine the current ADP exception state
This function is used to examine the current ADP exception state.
The function returns 0 if the exception state is ok and 1 otherwise.
If the optional state argument is passed, a variable with that name will be set for the caller, and will contain the exception state with one of the following possible values:
ok: ADP was evaluated successfully
overflow: Stack overflow occurred. This might happen, for example, if there was a recursive call to ns_adp_include.
abort: An attempt to debug failed or ns_adp_abort was called.
break: ns_adp_break was called
unknown: Unrecognized exception status. This should not occur.