Re: Unhandled exception - How to turn off!

Tech-Archive recommends: Fix windows errors by optimizing your registry

bad_cast,
bad_exception,
bad_typeid,
terminate,
type_info,
uncaught_exception,
unexpected

all these functions and classes are deeply language bounded, and reside
in the std namespace.

Yes, in some cases the compiler implicitly calls std library functions,
such as uncaught_exception or unexpected. The compiler has every right to
generate implicit function calls. Those two functions, however, are the
dark side of C++, and the general consensus is that it's better to avoid
them. I wouldn't touch uncaught_exception or exception specifiers with a
10-foot pole:

http://www.gotw.ca/gotw/047.htm
http://www.gotw.ca/gotw/082.htm

A valid use of uncaught_exception function is in the RAII e.g:

class TransactionScope
{
private:
Connection &connection;
public:
TransactionScope(Connection &connection): connection(connection)
{
connection.BeginTransaction();
}
~TransactionScope()
{
if (!std::uncaught_exception())
connection.Commit();
else
connection.Rollback();
}
};

....

Connection &connection = ...

{
TransactionScope transactionScope(connection);

...
}

....
--
Vladimir Nesterovsky


.

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