alm.cc

/*
 *  This file is part of Healpix_cxx.
 *
 *  Healpix_cxx is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Healpix_cxx 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Healpix_cxx; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *  For more information about HEALPix, see http://healpix.sourceforge.net
 */

/*
 *  Healpix_cxx is being developed at the Max-Planck-Institut fuer Astrophysik
 *  and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
 *  (DLR).
 */

/*! \file alm.cc
 *  Class for storing spherical harmonic coefficients.
 *
 *  Copyright (C) 2003-2011 Max-Planck-Society
 *  \author Martin Reinecke
 */

#include "alm.h"

using namespace std;

//static
tsize Alm_Base::Num_Alms (long l, long m)
  {
  planck_assert(m<=l,"mmax must not be larger than lmax");
  return ((m+1)*(m+2))/2 + (m+1)*(l-m);
  }

void Alm_Base::swap (Alm_Base &other)
  {
  std::swap(lmax, other.lmax);
  std::swap(mmax, other.mmax);
  std::swap(tval, other.tval);
  }