Simulink - control flow using custom C code

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giga 2016-4-23

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/280625-simulink-control-flow-using-custom-c-code

编辑： giga 2016-4-23

I am trying to generate a Simulink model which when generated code, exhibits a functionality like this:

if (rollDice()==7) {
  // Do something (anything)
  if (rollDice()==7) {
    // Do something (anything)
  }
}

Now the function rollDice() is my custom C function, I want to provide it somehow. I do not want to model this using s-functions, I want to model this using Simulink blocks; only the rollDice() function is my custom C code.

This is my attempt: I provided the rollDice() function using Model Configuration Parameters > Code Generation > Custom code > Source File.

Then I tried to use an `If Block` and put the rollDice() code directly in the field of If Expression. However, that is not allowed (Simulink throws an error message).

Please help by suggesting whether it is possible to model this behavior using Simulink blocks! My ultimate goal is to generate code which looks like the code I posted on the top of my question.