nullObjectI.H
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25 
26 template <class T>
27 inline const T& Foam::NullObjectRef()
28 {
29  return *reinterpret_cast<const T*>(nullObjectPtr);
30 }
31 
32 template <class T>
33 inline const T* Foam::NullObjectPtr()
34 {
35  return reinterpret_cast<const T*>(nullObjectPtr);
36 }
37 
38 
39 template <class T>
40 inline bool Foam::isNull(const T& t)
41 {
42  return &t == NullObjectPtr<T>();
43 }
44 
45 template <class T>
46 inline bool Foam::notNull(const T& t)
47 {
48  return &t != NullObjectPtr<T>();
49 }
50 
51 
52 template <class T>
53 inline bool Foam::isNull(const T* t)
54 {
55  return t == NullObjectPtr<T>();
56 }
57 
58 template <class T>
59 inline bool Foam::notNull(const T* t)
60 {
61  return t != NullObjectPtr<T>();
62 }
63 
64 
65 // ************************************************************************* //
bool notNull(const T &t)
Return true if t is not a reference to the nullObject of type T.
Definition: nullObjectI.H:46
const volScalarField & T
Definition: createFields.H:25
const T & NullObjectRef()
Return reference to the nullObject of type T.
Definition: nullObjectI.H:27
const T * NullObjectPtr()
Return pointer to the nullObject of type T.
Definition: nullObjectI.H:33
const NullObject * nullObjectPtr
Pointer to the unique nullObject.
Definition: nullObject.C:31
bool isNull(const T &t)
Return true if t is a reference to the nullObject of type T.
Definition: nullObjectI.H:40