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sc::Ref Class Template Reference A template class that maintains references counts. More... #include <ref.h> Inheritance diagram for sc::Ref: [legend]Collaboration diagram for sc::Ref: [legend]List of all members. Public Methods   Ref ()   Create a reference to a null object.   Ref (T *a)   Create a reference to the object a.   Ref (const Ref< T > &a)   Create a reference to the object referred to by a. template<class A>   Ref (const Ref< A > &a)   Create a reference to the object referred to by a.   ~Ref ()   Delete this reference to the object. More... T *  operator-> () const   Returns the reference counted object. More... T *  pointer () const   Returns a pointer the reference counted object. RefCount *  parentpointer () const   Implements the parentpointer pure virtual in the base class.   operator T * () const T &  operator * () const   Returns a C++ reference to the reference counted object. More... int  null () const   Return 1 if this is a reference to a null object. More... int  nonnull () const   Return !null(). template<class A> int  operator== (const Ref< A > &a) const   A variety of ordering and equivalence operators are provided using the Identity class. template<class A> int  operator>= (const Ref< A > &a) const template<class A> int  operator<= (const Ref< A > &a) const template<class A> int  operator> (const Ref< A > &a) const template<class A> int  operator< (const Ref< A > &a) const template<class A> int  operator!= (const Ref< A > &a) const int  compare (const Ref< T > &a) const   Compare two objects returning -1, 0, or 1. More... void  clear ()   Refer to the null object. Ref< T > &  operator= (const Ref< T > &c)   Assignment to c. template<class A> Ref< T > &  operator= (const Ref< A > &c)   Assignment to c. Ref< T > &  operator<< (const RefBase &a)   Assignment to the object that a references using dynamic_cast. Ref< T > &  operator<< (RefCount *a)   Assigns to the given base class pointer using dynamic_cast. More... Ref< T > &  operator= (T *cr)   Assignment to cr. void  assign_pointer (T *cr)   Assignment to cr. void  check_pointer () const   Check the validity of the pointer. void  ref_info (std::ostream &os) const   Print information about the reference to os. void  warn (const char *s) const   Print a warning concerning the reference. Detailed Description template<class T> class sc::Ref< T > A template class that maintains references counts. Several of these operations can cause a reference to an object to be replaced by a reference to a different object. If a reference to a nonnull object is eliminated, the object's reference count is decremented and the object is deleted if the reference count becomes zero. There also may be a to convert to T*, where T is the type of the object which Ref references. Some compilers have bugs that prevent the use of operator T *(). The pointer() member should be used instead. Constructor & Destructor Documentation template<class T> sc::Ref< T >::~Ref (    )  [inline]   Delete this reference to the object. Decrement the object's reference count and delete the object if the count is zero. Member Function Documentation template<class T> int sc::Ref< T >::compare (  const Ref< T > &    a )  const [inline]   Compare two objects returning -1, 0, or 1. Similar to the C library routine strcmp. template<class T> int sc::Ref< T >::null (    )  const [inline]   Return 1 if this is a reference to a null object. Otherwise return 0. template<class T> T& sc::Ref< T >::operator * (    )  const [inline]   Returns a C++ reference to the reference counted object. The behaviour is undefined if the object is null. template<class T> T* sc::Ref< T >::operator-> (    )  const [inline]   Returns the reference counted object. The behaviour is undefined if the object is null. template<class T> Ref<T>& sc::Ref< T >::operator<< (  RefCount *    a )  [inline]   Assigns to the given base class pointer using dynamic_cast. If the dynamic_cast fails and the argument is nonnull and has a reference count of zero, then it is deleted. The documentation for this class was generated from the following file: ref.h