//# TVecTemp.h: Templated table vectors held in memory as a temporary //# Copyright (C) 1994,1995,1999 //# Associated Universities, Inc. Washington DC, USA. //# //# This library is free software; you can redistribute it and/or modify it //# under the terms of the GNU Library General Public License as published by //# the Free Software Foundation; either version 2 of the License, or (at your //# option) any later version. //# //# This library is distributed in the hope that it will be useful, but WITHOUT //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public //# License for more details. //# //# You should have received a copy of the GNU Library General Public License //# along with this library; if not, write to the Free Software Foundation, //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. //# //# Correspondence concerning AIPS++ should be addressed as follows: //# Internet email: aips2-request@nrao.edu. //# Postal address: AIPS++ Project Office //# National Radio Astronomy Observatory //# 520 Edgemont Road //# Charlottesville, VA 22903-2475 USA //# //# $Id$ #ifndef TABLES_TVECTEMP_H #define TABLES_TVECTEMP_H //# Includes #include #include #include namespace casacore { //# NAMESPACE CASACORE - BEGIN // // Templated table vectors held in memory as a temporary // // // // // //# Classes you should understand before using this one. //
  • TabVecRep // // // TabVecTemp is the class dealing with a table vector when used as // a temporary in math operations. // // // TabVecTemp objects enable the use of Vector objects as table vectors. // They are used for 2 purposes: //
      //
    1. To convert a Vector to a TableVector. This is used to // allow the use of Vectors in TableVector expressions. // The TabVecTemp object uses the Vector copy constructor, // which is very cheap due to its reference semantics. //
    2. To hold the result of an operation (like addition) on // two TableVector objects. //
    //
    // // TabVecTemp is derived from TabVecRep and as such a letter for // the envelope class TableVector. // // //
  • Default constructor //
  • Copy constructor //
  • Assignment operator // // //# A List of bugs, limitations, extensions or planned refinements. //
  • In the future temporary results may need to use a file, // because table vectors can potentially be very, very long. // template class TabVecTemp : public TabVecRep { //# Make members of parent class known. protected: using TabVecRep::tag_p; using TabVecRep::nrel_p; public: // Create table vector containing the given Vector (reference semantics). // It will set the origin to zero. TabVecTemp (const Vector&); // Create table vector containing a Vector with given length. TabVecTemp (rownr_t leng); // Destruct the object. ~TabVecTemp(); // Return a reference to a value. inline const T& operator() (rownr_t index) const; // Return a reference to a value. inline T& operator() (rownr_t index); // Get a value (virtual function). T value (rownr_t index) const; // Get a value (virtual function). void getVal (rownr_t index, T&) const; // Put a value (virtual function). void putVal (rownr_t index, const T&); // Set entire vector to a value. void set (const T&); protected: Vector* vecPtr_p; }; //# Return a reference to a value. template inline const T& TabVecTemp::operator() (rownr_t index) const { return (*vecPtr_p)(index); } template inline T& TabVecTemp::operator() (rownr_t index) { return (*vecPtr_p)(index); } } //# NAMESPACE CASACORE - END #ifndef CASACORE_NO_AUTO_TEMPLATES #include #endif //# CASACORE_NO_AUTO_TEMPLATES #endif