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dft_tools/triqs/gfs/legendre.hpp
Olivier Parcollet fa07abbea9 [gfs] Singularity as an explicit template parameter
- change the underlying data : do not flatten the linear indices of the
  mesh into a single index, keep a higher dim array.
- easier for various places, and necessary for g(nu,nu').
- work on several 2 part. containers.
- add default target (may not be always matrix_valued)
2014-10-18 21:20:16 +02:00

69 lines
2.4 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_LEGENDRE_TIME_H
#define TRIQS_GF_LEGENDRE_TIME_H
#include "./tools.hpp"
#include "./gf.hpp"
#include "./local/tail.hpp"
#include "./domains/legendre.hpp"
#include "./meshes/discrete.hpp"
namespace triqs {
namespace gfs {
struct legendre {};
// mesh type and its factories
template <typename Opt> struct gf_mesh<legendre, Opt> : discrete_mesh<legendre_domain> {
typedef discrete_mesh<legendre_domain> B;
gf_mesh() = default;
gf_mesh(double beta, statistic_enum S, size_t n_leg) : B(typename B::domain_t(beta, S, n_leg)) {}
};
namespace gfs_implementation {
// h5 name
template <typename Opt> struct h5_name<legendre, matrix_valued, nothing, Opt> {
static std::string invoke() { return "Legendre"; }
};
/// --------------------------- evaluator ---------------------------------
// Not finished, not tested
template <typename Opt> struct evaluator<legendre, matrix_valued, nothing, Opt> {
static constexpr int arity = 1;
// ERROR : give a double and interpolate
template <typename G> arrays::matrix_view<double> operator()(G const* g, long n) const {
return g->data()(n, arrays::range(), arrays::range());
}
};
/// --------------------------- data access ---------------------------------
template <typename Opt> struct data_proxy<legendre, matrix_valued, Opt> : data_proxy_array<double, 3> {};
template <typename Opt> struct data_proxy<legendre, scalar_valued, Opt> : data_proxy_array<double, 1> {};
} // gfs_implementation
}
}
#endif