Function operator_new_impl

system/lib/libcxx/src/new.cpp:30–44

// that define non-weak copies of the functions.

static void* operator_new_impl(std::size_t size) {
  if (size == 0)
    size = 1;
  void* p;
  while ((p = std::malloc(size)) == nullptr) {
    // If malloc fails and there is a new_handler,
    // call it to try free up memory.
    std::new_handler nh = std::get_new_handler();
    if (nh)
      nh();
    else
      break;
  }
  return p;
}

_LIBCPP_OVERRIDABLE_FUNCTION(void*, operator new, (std::size_t size)) _THROW_BAD_ALLOC {
  void* p = operator_new_impl(size);