Hi,
From my understanding, you’re looking to see if every type of function block in Simulink is represented by a void function type and a global variable for output by Simulink Coder.
I’ve attached a handy link to the Simulink Coder documentation where you can see the different code templates for various function blocks, under the “Choose a Modelling Pattern” section.
As you can see, all of these follow the same pattern of having a void return type and they store their output in a global data type.
Embedded Coder does provide options to configure function interfaces for simpler integration of generated code with external code, which you may look at here:
I hope this helps,
Adit Kirtani.
