operator!=# Fully qualified name: carb::extras::operator!= Defined in carb/extras/HandleDatabase.h template<class Mapped, class Handle, class Allocator>inline bool carb::extras::operator!=( std::nullptr_t, const HandleRef<Mapped, Handle, Allocator> &ref, )# Tests inequality between HandleRef and nullptr. Parameters: ref – The HandleRef to test. Returns: true if ref is not empty; false otherwise.