C Function

The C Function block is available for the inputted file made by Julia code or C code which user defined.

• The function format of C Function has to be extern "C" __declspec(dllexport) int __cdecl C_Function(double *y, double *u) and the solver calls only C_Function in the C code. Here, y is the outputted array and u is the inputted array. The return value is the error code and it will be used later on.

extern "C" __declspec(dllexport) int __cdecl C_Function(double* y, double* u)

{

y[0] = 2.5*u[0];

y[1] = 2.0*u[1];

return 1;

}

• The function format of Julia Function has to be function Jl_Function(y, u) and the solver calls only “Jl_Function” function in the Julia code. Here, y is the output array and u is the input array. The return value is the error code and it will be used later on.

function Jl_Function( y, u)
#u : input to the block

#y : output from the block
y[1] = 2.5*u[1]

y[2] = 2.0*u[2]
return 0;
end

To see the contents supported the Julia Script.

Dialog box

Figure 1 C Function dialog box

Parameters

Parameter(s)	Description
Input Data Size	Enters the number of inputted double value
Output Data Size	Enters the number of outputted double value
Type	When the user uses the Julia code, select “Jl Function” and when the user uses the DLL, select “C DLL”.
File	When Type is the “Jl Function”, the Jl file can be selected. when Type is “C DLL”, the DLL file can be selected.