NumTns.hpp

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/*
   Copyright (c) 2012 The Regents of the University of California,
   through Lawrence Berkeley National Laboratory.  

Authors: Lexing Ying, Mathias Jacquelin and Lin Lin

This file is part of PEXSI. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

(1) Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
(2) Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
(3) Neither the name of the University of California, Lawrence Berkeley
National Laboratory, U.S. Dept. of Energy nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.

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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 */
#ifndef _PEXSI_NUMTNS_HPP_
#define _PEXSI_NUMTNS_HPP_

#include "pexsi/environment.hpp"
#include "pexsi/NumMat.hpp"


namespace  PEXSI{

template <class F>
  class NumTns
  {
  public:
    Int m_; 

    Int n_; 

    Int p_;

    bool owndata_;

    F* data_;
  public:
    NumTns(Int m=0, Int n=0, Int p=0);
    NumTns(Int m, Int n, Int p, bool owndata, F* data);
    NumTns(const NumTns& C);
    ~NumTns();
    NumTns& operator=(const NumTns& C);
    void Resize(Int m, Int n, Int p);
    const F& operator()(Int i, Int j, Int k) const;
    F& operator()(Int i, Int j, Int k);
    F* Data() const { return data_; }
    F* MatData (Int j) const;
    F* VecData (Int j, Int k) const;

    Int m() const { return m_; }
    Int n() const { return n_; }
    Int p() const { return p_; }
    Int ByteSize() const { return p_*m_*n_*sizeof(F);}

  };


typedef NumTns<bool>       BolNumTns;
typedef NumTns<Int>        IntNumTns;
typedef NumTns<Real>       DblNumTns;
typedef NumTns<Complex>    CpxNumTns;

// *********************************************************************
// Utility functions
// *********************************************************************
template <class F> inline void SetValue(NumTns<F>& T, F val);

template <class F> inline Real Energy(const NumTns<F>& T);

} // namespace PEXSI

#include "pexsi/NumTns_impl.hpp"

#endif // _PEXSI_NUMTNS_HPP_