Avoid error-prone malloc/free pairs. This uses somewhat
obscure constructs to stay as close as possible to the
original C code. Notably, it uses mostly unique_ptr<T[]>
which doesn't store the length of the array, because the
length is supposed to be known.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Long term project: convert core to C++ so that we can
use higer-level constructs, notably std::vector<>.
This does not change any code - only fixes compile issues.
Mostly casting of (void *) to the proper type. Also designated
initialization of the sample struct had to be rearranged.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
