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dft_tools/triqs/gfs/legendre.hpp
Olivier Parcollet bb7394dfaf gf : correction to legendre.
a error in a trait.
2013-08-30 16:08:40 +02:00

78 lines
2.9 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,Opt> { static std::string invoke(){ return "Legendre";}};
/// --------------------------- evaluator ---------------------------------
template<typename Opt>
struct evaluator<legendre,matrix_valued,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()); }
template<typename G>
local::tail_view operator()(G const * g,freq_infty const &) const {return g->singularity();}
};
/// --------------------------- data access ---------------------------------
template<typename Opt> struct data_proxy<legendre,matrix_valued,Opt> : data_proxy_array<double,3> {};
// ------------------------------- Factories --------------------------------------------------
template<typename Opt> struct factories<legendre, matrix_valued,Opt> {
typedef gf<legendre, matrix_valued,Opt> gf_t;
typedef gf_mesh<legendre, Opt> mesh_t;
static gf_t make_gf(double beta, statistic_enum S, tqa::mini_vector<size_t,2> shape, size_t n_leg) {
typename gf_t::data_regular_t A(shape.front_append(n_leg)); A() = 0;
return gf_t(gf_mesh<legendre,Opt>(beta, S, n_leg), std::move(A), nothing(), nothing());
}
};
} // gfs_implementation
}}
#endif