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ArrayMathBase.h
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1 //# ArrayMathBase.h: Basic functions and classes for math on Array objects
2 //# Copyright (C) 2012
3 //# Associated Universities, Inc. Washington DC, USA.
4 //#
5 //# This library is free software; you can redistribute it and/or modify it
6 //# under the terms of the GNU Library General Public License as published by
7 //# the Free Software Foundation; either version 2 of the License, or (at your
8 //# option) any later version.
9 //#
10 //# This library is distributed in the hope that it will be useful, but WITHOUT
11 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
13 //# License for more details.
14 //#
15 //# You should have received a copy of the GNU Library General Public License
16 //# along with this library; if not, write to the Free Software Foundation,
17 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
18 //#
19 //# Correspondence concerning AIPS++ should be addressed as follows:
20 //# Internet email: aips2-request@nrao.edu.
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22 //# National Radio Astronomy Observatory
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25 //#
26 //# $Id: ArrayMathBase.h 21262 2012-09-07 12:38:36Z gervandiepen $
27 
28 #ifndef CASA_ARRAYMATHBASE_2_H
29 #define CASA_ARRAYMATHBASE_2_H
30 
31 #include "ArrayFwd.h"
32 
33 namespace casacore {
34 
35  // <summary>
36  // Basic class for math on Array objects
37  // </summary>
38  //
39  // <reviewed reviewer="UNKNOWN" date="" tests="tArrayMath">
40  //
41  // <prerequisite>
42  // <li> <linkto class=Array>Array</linkto>
43  // </prerequisite>
44  //
45  // <synopsis>
46  // The abstract base class ArrayFunctorBase is defined for functors to
47  // be used in functions like slidingXXX.
48  // Virtual functions instead of templated functions are used to avoid
49  // code bloat when used in functions like partialArrayMath. Because a
50  // reduction operation usually takes much more time than the call, using
51  // virtual functions hardly imposes a performance penalty.
52  // </synopsis>
53  template<typename T, typename RES=T> class ArrayFunctorBase {
54  public:
55  virtual ~ArrayFunctorBase() {}
56  virtual RES operator() (const Array<T>&) const = 0;
57  };
58 
59 } //# end namespace
60 
61 #endif
virtual RES operator()(const Array< T > &) const =0
Basic class for math on Array objects.
Definition: ArrayMathBase.h:53