Could it be possible that the array which is being passed to MAX has an empty dimension when you are running the MEX?
The error suggests that for a call like:
max(A)
where A is variable-sized in its first non-singleton dimension, "dim" then,
size(A,dim)
should not be zero.
As an example, suppose that A is 1-by-:5-by-10 meaning that A is variable-sized in the second dimension with an upper bound of 5 for size(A,2). In this case, "dim" would be 2 since size(A,1) is 1.
If at runtime A is 1-by-0-by-10 then you will see this error.
You could do something like:
if isempty(A)
maxVar = A;
else
maxVar = max(A);
end
in your MATLAB code to prevent this error. Alternatively, if you are specifying "dim" explicitly in your call to MAX you could use:
if size(A,dim) == 0
maxVar = A;
else
maxVar = max(A,[],dim);
end
The reason for this check in code generation is to ensure that the output of MAX has a constant value for size(max(A), dim). Functions like BSXFUN and others then depend upon this information.
