Use of the enumeration data class

C++

All Versions

This technote illustrates the use of enumeration data class through an example in which an enumerated value needs to be sent as part of a message.

Let's assume Data1 and Data2 are both Enumerations and Data2 inherits from Data1. For this example, Data1 has red and green defined and Data2 has yellow defined. Assuming you have a signal named sig, with a Data2 data class you may use either:

    port.send (sig, Data2(Data2::red);
or
    port.send (sig, Data2(Data1::red);

You may send the yellow value using the following:

    port.send (sig, (Data2(Data2::yellow));
or
    port.send (sig, Data2::yellow);