I have never used those, but my understanding is that you can change the call names (e.g, fread to FREAD), and coder.extrinsic('FREAD'), and then you supply minor interface code along the lines of
#include <stdio.h>
int FREAD(.... prototype here ....) {
return fread(....)
}
except that you would need to do whatever is necessary to deal with an array (e.g., passing in a buffer and buffer size, reading the data to the buffer, returning the fread() status.)
