How to define the <SHAPE> of an array with variable size in a c++ clib function?

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JoRo
JoRo 2023-3-6
回答： JoRo 2023-3-7
Hi,
I am trying to build a c++ clib.
After running:
clibgen.generateLibraryDefinition(...)
I get a definemylib.mlx.
There I have to define the shape of the function input:
defineArgument(mycppfunctionDefinition, "myarray", "clib.array.mylib.Double", "input", <SHAPE>)
In my c++ file, the corresponding function is defined as:
void mycppfunction(double myarray[]);
Because the size of myarray changes in matlab, I do not know how to define the <SHAPE>.
I have read the following page Define Missing SHAPE Parameter - MATLAB & Simulink - MathWorks Deutschland,
but I did not find an answer, if the size is unknown / changing...
Can anyone give me a tip, how to solve this problem?
Best regards.

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采纳的回答

JoRo
JoRo 2023-3-7
In case anyone faces the same issue: I solved the problem.
I had to redefine the c++ function to:
void mycppfunction(double myarray[], size_t len);
Then I had to add "len" to the definemylib.mlx file to:
defineArgument(mycppfunctionDefinition, "myarray", "clib.array.mylib.Double", "input", "len").
Now it works.

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