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Fri, May 31, 06:59

common.hh
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/**
* file common.hh
*
* @author Till Junge <till.junge@epfl.ch>
*
* @date 01 May 2017
*
* @brief Small definitions of commonly used types througout µSpectre
*
* @section LICENCE
*
* Copyright (C) 2017 Till Junge
*
* µSpectre 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 3, or (at
* your option) any later version.
*
* µSpectre 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 GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <array>
#include <complex>
#include <iostream>
#include <type_traits>
#ifndef COMMON_H
#define COMMON_H
namespace muSpectre {
using Dim_t = int;// needs to represent -1 for eigen
const Dim_t oneD{1};
const Dim_t twoD{2};
const Dim_t threeD{3};
//! Ccoord_t are cell coordinates, i.e. integer coordinates
template<Dim_t dim>
using Ccoord_t = std::array<Dim_t, dim>;
template<size_t dim>
std::ostream & operator << (std::ostream & os, const Ccoord_t<dim> & index) {
os << "(";
for (size_t i = 0; i < dim-1; ++i) {
os << index[i] << ", ";
}
os << index.back() << ")";
return os;
}
using Uint = unsigned int;
using Int = int;
using Real = double;
using Complex = std::complex<Real>;
template <typename I>
constexpr I ipow(I base, I exponent) {
static_assert(std::is_integral<I>::value, "Type must be integer");
I retval{1};
for (I i = 0; i < exponent; ++i) {
retval *= base;
}
return retval;
}
} // muSpectre
#endif /* COMMON_H */

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