Determine if message is valid



isvalid(message_name) checks if an input or local message is valid. A message is valid if the chart has removed it from the queue and has not forwarded or discarded it.


expand all

When state A is active, receive message M. If the message has a data value equal to 3, discard the message. Then, when state B is active, check that the message M is still valid. If the message is valid and has a data value equal to 6, discard the message.

Introduced in R2018b