Embedded Coder give uncompilable code using dynamic arrays

Hi,

When generating C++ code an error occurs. Using dynamic arrays (not statically reserved memory) in matlab results in generated code that uses data structures of type array and b_array, where b_array is undefined. Hence, trying to use Embedded Coder with Matlab 2020a might give uncompilable code.

Appreciate any feedback and help on this issue.

Regards,

M

[Gaurav Garg]

Hey Marcus,

Can you share the piece of code resulting in error during the compilation for MATLAB Coder?

[Glenn]

I'm seeing the same problem. I've used a 'sed' script to simply change the 'b_array' references to 'array', and the code compiles and appears to work:

sed -i -e "s/b_array/array/g" *.{h,cpp}

[Sumit Ghosh]

Hi Glenn,

Can you help us reproduce the issue so that we can fix it and/or offer a workaround.

Thanks,

Sumit.

Answer 1

[Ryan Livingston]

This is a bug and has been reported to our development team. In addition to the postprocessing workaround suggested by Glenn, you can disable coder::array if you're OK using emxArrays instead:

cfg = coder.config('lib');
cfg.DynamicMemoryAllocationInterface = 'C';

codegen f -args 1 -lang:c++ -config cfg -report