mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 03:33:50 +01:00
184274c893
- in the default constructor, do not call the pointer that may be null. - appeared only in python (unused in c++), for new matsubara...
104 lines
3.8 KiB
C++
104 lines
3.8 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/>.
|
|
*
|
|
******************************************************************************/
|
|
#ifndef TRIQS_GF_MESH_DISCRETE_H
|
|
#define TRIQS_GF_MESH_DISCRETE_H
|
|
#include "./mesh_tools.hpp"
|
|
#include "../domains/discrete.hpp"
|
|
|
|
namespace triqs { namespace gfs {
|
|
|
|
template<typename Domain>
|
|
struct discrete_mesh {
|
|
|
|
typedef Domain domain_t;
|
|
typedef size_t index_t;
|
|
|
|
discrete_mesh(domain_t dom) : _dom(std::move(dom)) {}
|
|
discrete_mesh() = default;
|
|
|
|
domain_t const &domain() const { return _dom; }
|
|
size_t size() const {return _dom.size();}
|
|
|
|
/// Conversions point <-> index <-> discrete_index
|
|
size_t index_to_point (index_t ind) const {return ind;}
|
|
size_t index_to_linear(index_t ind) const {return ind;}
|
|
|
|
/// The wrapper for the mesh point
|
|
class mesh_point_t : tag::mesh_point,public arith_ops_by_cast<mesh_point_t, size_t> {
|
|
discrete_mesh const * m;
|
|
index_t _index;
|
|
public:
|
|
mesh_point_t() = default;
|
|
mesh_point_t( discrete_mesh const & mesh, index_t const & index_): m(&mesh), _index(index_) {}
|
|
void advance() { ++_index;}
|
|
typedef size_t cast_t;
|
|
operator cast_t() const { return m->index_to_point(_index);}
|
|
size_t linear_index() const { return _index;}
|
|
size_t index() const { return _index;}
|
|
bool at_end() const { return (_index == m->size());}
|
|
void reset() {_index =0;}
|
|
};
|
|
|
|
/// Accessing a point of the mesh
|
|
mesh_point_t operator[](index_t i) const { return mesh_point_t (*this,i);}
|
|
mesh_point_t operator[](std::string const & s) const { return mesh_point_t (*this,_dom.index_from_name(s));}
|
|
|
|
/// Iterating on all the points...
|
|
typedef mesh_pt_generator<discrete_mesh> const_iterator;
|
|
const_iterator begin() const { return const_iterator (this);}
|
|
const_iterator end() const { return const_iterator (this, true);}
|
|
const_iterator cbegin() const { return const_iterator (this);}
|
|
const_iterator cend() const { return const_iterator (this, true);}
|
|
|
|
/// Mesh comparison
|
|
bool operator == (discrete_mesh const & M) const { return (_dom == M._dom) ;}
|
|
bool operator != (discrete_mesh const & M) const { return !(operator==(M)); }
|
|
|
|
/// Write into HDF5
|
|
friend void h5_write (h5::group fg, std::string subgroup_name, discrete_mesh const & m) {
|
|
h5::group gr = fg.create_group(subgroup_name);
|
|
h5_write(gr,"domain",m.domain());
|
|
}
|
|
|
|
/// Read from HDF5
|
|
friend void h5_read (h5::group fg, std::string subgroup_name, discrete_mesh & m){
|
|
h5::group gr = fg.open_group(subgroup_name);
|
|
typename discrete_mesh::domain_t dom;
|
|
h5_read(gr,"domain",dom);
|
|
m = discrete_mesh(std::move(dom));
|
|
}
|
|
|
|
// BOOST Serialization
|
|
friend class boost::serialization::access;
|
|
template<class Archive>
|
|
void serialize(Archive & ar, const unsigned int version) {
|
|
ar & boost::serialization::make_nvp("domain",_dom);
|
|
}
|
|
|
|
friend std::ostream &operator <<(std::ostream &sout, discrete_mesh const & m){return sout << "Discrete Mesh"; }
|
|
|
|
private:
|
|
domain_t _dom;
|
|
};
|
|
}}
|
|
#endif
|
|
|