Function DEPRECATE

python/src/metal.cpp:20–24

using namespace nb::literals;

bool DEPRECATE(const char* old_fn, const char* new_fn) {
  std::cerr << old_fn << " is deprecated and will be removed in a future "
            << "version. Use " << new_fn << " instead." << std::endl;
  return true;
}

#define DEPRECATE(oldfn, newfn) static bool dep = DEPRECATE(oldfn, newfn)