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dft_tools/triqs/gfs/domains/discrete.hpp
Olivier Parcollet bdac3e159c work on doc for gf, and details.
- little details : code cleaning, clang formatting,  along
with documentation writing for c++ gf.
- separated the mesh in small class for better doc.
- work on documentation : reorganize specialisation, ...
2013-12-30 22:32:16 +01:00

85 lines
2.8 KiB
C++

/*******************************************************************************
*
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
*
* Copyright (C) 2012 by M. Ferrero, O. Parcollet
*
* TRIQS 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 of the License, or (at your option) any later
* version.
*
* TRIQS 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
* TRIQS. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#pragma once
#include "../tools.hpp"
#include <map>
namespace triqs {
namespace gfs {
class discrete_domain {
int Nmax;
std::vector<std::string> _names; // optional name of the points (e.g. for block)
std::map<std::string, int> _inv_names; // table inverting the previous vector
void init_inv() {
int i = 0;
for (auto const& x : _names) _inv_names[x] = i++;
}
public:
using point_t = int;
int size() const {
return Nmax;
};
discrete_domain(int Nmax_ = 1) : Nmax(Nmax_) {
for (int i = 0; i < Nmax; ++i) {
std::stringstream fs;
fs << i;
_names.push_back(fs.str());
}
init_inv();
}
discrete_domain(std::vector<std::string> Names) : Nmax(Names.size()), _names(std::move(Names)) { init_inv(); }
discrete_domain(std::initializer_list<std::string> const& Names) : Nmax(Names.size()), _names(Names) { init_inv(); }
std::vector<std::string> const& names() const { return _names; }
int index_from_name(std::string const& s) const { return _inv_names.at(s); }
bool operator==(discrete_domain const& D) const { return (Nmax == D.Nmax); }
/// Write into HDF5
friend void h5_write(h5::group fg, std::string subgroup_name, discrete_domain const& d) {
h5::group gr = fg.create_group(subgroup_name);
h5_write(gr, "n_max", d.Nmax);
// THE NAME ARE MISSING
}
/// Read from HDF5
friend void h5_read(h5::group fg, std::string subgroup_name, discrete_domain& d) {
h5::group gr = fg.open_group(subgroup_name);
int n;
h5_read(gr, "n_max", n);
d = discrete_domain(n);
// NAME ARE MISSING
}
// BOOST Serialization
friend class boost::serialization::access;
template <class Archive> void serialize(Archive& ar, const unsigned int version) {
ar& boost::serialization::make_nvp("n_max", Nmax);
ar& boost::serialization::make_nvp("names", _names);
ar& boost::serialization::make_nvp("names_inv", _inv_names);
}
};
}
}