#include <ref.h>
Inheritance diagram for sc::Ref< T >:
Public Member Functions | |
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. | |
T * | operator-> () const |
Returns the reference counted object. | |
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. | |
int | null () const |
Return 1 if this is a reference to a null object. | |
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. | |
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. | |
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. |
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.
Delete this reference to the object.
Decrement the object's reference count and delete the object if the count is zero.
T* sc::Ref< T >::operator-> | ( | ) | const [inline] |
Returns the reference counted object.
The behaviour is undefined if the object is null.
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.
int sc::Ref< T >::null | ( | ) | const [inline] |
Return 1 if this is a reference to a null object.
Otherwise return 0.
int sc::Ref< T >::operator== | ( | const Ref< A > & | a | ) | const [inline] |
A variety of ordering and equivalence operators are provided using the Identity class.
Compare two objects returning -1, 0, or 1.
Similar to the C library routine strcmp.
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.
Reimplemented in sc::RefSCDimension.