UIndirectListIO.C
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1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 2011-2014 OpenFOAM Foundation
6  \\/ M anipulation |
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24 \*---------------------------------------------------------------------------*/
25 
26 #include "UIndirectList.H"
27 #include "Ostream.H"
28 #include "token.H"
29 #include "contiguous.H"
30 
31 // * * * * * * * * * * * * * * * Ostream Operator * * * * * * * * * * * * * //
32 
33 template<class T>
34 Foam::Ostream& Foam::operator<<
35 (
36  Foam::Ostream& os,
37  const Foam::UIndirectList<T>& L
38 )
39 {
40  // Write list contents depending on data format
41  if (os.format() == IOstream::ASCII || !contiguous<T>())
42  {
43  bool uniform = false;
44 
45  if (L.size() > 1 && contiguous<T>())
46  {
47  uniform = true;
48 
49  forAll(L, i)
50  {
51  if (L[i] != L[0])
52  {
53  uniform = false;
54  break;
55  }
56  }
57  }
58 
59  if (uniform)
60  {
61  // Write size and start delimiter
62  os << L.size() << token::BEGIN_BLOCK;
63 
64  // Write contents
65  os << L[0];
66 
67  // Write end delimiter
68  os << token::END_BLOCK;
69  }
70  else if (L.size() <= 1 || (L.size() < 11 && contiguous<T>()))
71  {
72  // Write size and start delimiter
73  os << L.size() << token::BEGIN_LIST;
74 
75  // Write contents
76  forAll(L, i)
77  {
78  if (i) os << token::SPACE;
79  os << L[i];
80  }
81 
82  // Write end delimiter
83  os << token::END_LIST;
84  }
85  else
86  {
87  // Write size and start delimiter
88  os << nl << L.size() << nl << token::BEGIN_LIST;
89 
90  // Write contents
91  forAll(L, i)
92  {
93  os << nl << L[i];
94  }
95 
96  // Write end delimiter
97  os << nl << token::END_LIST << nl;
98  }
99  }
100  else
101  {
102  // this is annoying, and wasteful, but there's currently no alternative
103 
104  os << nl << L.size() << nl;
105 
106  if (L.size())
107  {
108  List<T> lst = L();
109 
110  os.write
111  (
112  reinterpret_cast<const char*>(lst.cdata()),
113  lst.byteSize()
114  );
115  }
116  }
117 
118  // Check state of IOstream
119  os.check("Ostream& operator<<(Ostream&, const UIndirectList&)");
120 
121  return os;
122 }
123 
124 
125 // ************************************************************************* //
static const char nl
Definition: Ostream.H:260
A List with indirect addressing.
Definition: fvMatrix.H:106
#define forAll(list, i)
Definition: UList.H:421
Template function to specify if the data of a type are contiguous.
An Ostream is an abstract base class for all output systems (streams, files, token lists...
Definition: Ostream.H:53