How do I use the Character or String data type in a Simulink S-Function?

How do I use the character or string data type in a Simulink S-Function?

Answer 1

[MathWorks Support Team]

The char and std::string data types are not supported by Simulink:

https://www.mathworks.com/help/simulink/ug/data-types-supported-by-simulink.html

However, "character arrays" can be emulated by using the int8 data type in Simulink and data type casts within the S-Function.