boost::mixin::combinators::boolean_or
// In header: <boost/mixin/combinators.hpp> template<typename MessageReturnType = bool> class boolean_or { public: // types typedef bool result_type; // construct/copy/destruct boolean_or(); // public member functions bool add_result(const MessageReturnType &); bool result() const; void reset(); };
A combinator for a boolean or operation.
typename MessageReturnType = bool
The actual return type of the messages. Its default value is bool, but such an operation is valid for various other classes that can be cast to bool, such as pointers, std streams, etc.
boolean_or public member functionsbool add_result(const MessageReturnType & r);
The function used by the code generated for multicast messages. Stops the execution of the multicast chain at the first true.
bool result() const;
The result of the operation if the multicast call has been made with an input/output parameter - an instance of boolean_or
void reset();Resets the result, so the instance could be reused.