Coder - Subtract vector from matrix, size mismatch error

Although MATLAB supports subtracting a vector from a matrix (as stated here : https://www.mathworks.com/help/matlab/matlab_prog/compatible-array-sizes-for-basic-operations.html ), when I try to generate code using MATLAB coder it gives me size mismatch error.

For example for the following function MATLAB can't generate code:

function C=subtraction()

A=3*ones(4,5);
B=ones(1,5);

C=A-B;

end

What should I do?

Answer 1

[Walter Roberson]

https://www.mathworks.com/help/coder/ug/matlab-language-features-supported-for-code-generation.html

specifically says that implicit expansion is not supported by Coder at this time.

The option is to use

C = bsxfun(@minus, A, B);