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ZeroConstant2.H
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23 
24 Class
25  Foam::Function2s::ZeroConstant
26 
27 Description
28  Templated function of two variables that returns the corresponding 0 (zero).
29 
30 Usage
31  \verbatim
32  <name> zero;
33  \endverbatim
34 
35 SourceFiles
36  ZeroConstant.C
37 
38 \*---------------------------------------------------------------------------*/
39 
40 #ifndef ZeroConstant2_H
41 #define ZeroConstant2_H
42 
43 #include "Function2.H"
44 
45 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
46 
47 namespace Foam
48 {
49 namespace Function2s
50 {
51 
52 /*---------------------------------------------------------------------------*\
53  Class ZeroConstant Declaration
54 \*---------------------------------------------------------------------------*/
55 
56 template<class Type>
57 class ZeroConstant
58 :
59  public FieldFunction2<Type, ZeroConstant<Type>>
60 {
61 
62 public:
63 
64  // Runtime type information
65  TypeName("zero");
66 
67 
68  // Constructors
69 
70  //- Construct from name
71  ZeroConstant(const word& name);
72 
73  //- Construct from name and dictionary
75  (
76  const word& name,
77  const unitConversions& units,
78  const dictionary& dict
79  );
80 
81 
82  //- Destructor
83  virtual ~ZeroConstant();
84 
85 
86  // Member Functions
87 
88  //- Return Zero
89  virtual inline Type value(const scalar x, const scalar y) const;
90 
91  //- Return Zero field
92  virtual inline tmp<Field<Type>> value
93  (
94  const scalarField& x,
95  const scalarField& y
96  ) const;
97 
98  //- Write in dictionary format
99  virtual void write(Ostream& os, const unitConversions& units) const;
100 
101 
102  // Member Operators
103 
104  //- Disallow default bitwise assignment
105  void operator=(const ZeroConstant<Type>&) = delete;
106 };
107 
108 
109 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
110 
111 } // End namespace Function2s
112 } // End namespace Foam
113 
114 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
115 
116 #include "ZeroConstant2I.H"
117 
118 #ifdef NoRepository
119  #include "ZeroConstant2.C"
120 #endif
121 
122 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
123 
124 #endif
125 
126 // ************************************************************************* //
scalar y
const word & name() const
Return the name of the entry.
Definition: Function2.C:78
Templated function of two variables that returns the corresponding 0 (zero).
Definition: ZeroConstant2.H:59
ZeroConstant(const word &name)
Construct from name.
Definition: ZeroConstant2.C:31
void operator=(const ZeroConstant< Type > &)=delete
Disallow default bitwise assignment.
virtual void write(Ostream &os, const unitConversions &units) const
Write in dictionary format.
Definition: ZeroConstant2.C:60
virtual ~ZeroConstant()
Destructor.
Definition: ZeroConstant2.C:52
virtual Type value(const scalar x, const scalar y) const
Return Zero.
An Ostream is an abstract base class for all output systems (streams, files, token lists,...
Definition: Ostream.H:57
A list of keyword definitions, which are a keyword followed by any number of values (e....
Definition: dictionary.H:162
A class for managing temporary objects.
Definition: tmp.H:55
A class for handling words, derived from string.
Definition: word.H:62
Namespace for OpenFOAM.
const HashTable< unitConversion > & units()
Get the table of unit conversions.
dictionary dict