mirror of
https://github.com/triqs/dft_tools
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78 lines
2.9 KiB
C++
78 lines
2.9 KiB
C++
/*******************************************************************************
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*
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* TRIQS: a Toolbox for Research in Interacting Quantum Systems
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*
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* Copyright (C) 2012 by M. Ferrero, O. Parcollet
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*
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* TRIQS is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* TRIQS. If not, see <http://www.gnu.org/licenses/>.
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*
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******************************************************************************/
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#ifndef TRIQS_GF_LEGENDRE_TIME_H
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#define TRIQS_GF_LEGENDRE_TIME_H
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#include "./tools.hpp"
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#include "./gf.hpp"
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#include "./local/tail.hpp"
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#include "./domains/legendre.hpp"
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#include "./meshes/discrete.hpp"
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namespace triqs { namespace gfs {
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struct legendre {};
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// mesh type and its factories
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template<typename Opt> struct gf_mesh<legendre,Opt> :discrete_mesh<legendre_domain> {
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typedef discrete_mesh<legendre_domain> B;
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gf_mesh() = default;
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gf_mesh(double beta, statistic_enum S, size_t n_leg) : B(typename B::domain_t(beta,S,n_leg)) {}
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};
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namespace gfs_implementation {
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// h5 name
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template<typename Opt> struct h5_name<legendre,matrix_valued,Opt> { static std::string invoke(){ return "Legendre";}};
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/// --------------------------- evaluator ---------------------------------
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template<typename Opt>
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struct evaluator<legendre,matrix_valued,Opt> {
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static constexpr int arity = 1;
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//ERROR : give a double and interpolate
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template<typename G>
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arrays::matrix_view<double > operator() (G const * g,long n) const {return g->data()(n, arrays::range(), arrays::range()); }
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template<typename G>
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local::tail_view operator()(G const * g,freq_infty const &) const {return g->singularity();}
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};
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/// --------------------------- data access ---------------------------------
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template<typename Opt> struct data_proxy<legendre,matrix_valued,Opt> : data_proxy_array<double,3> {};
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// ------------------------------- Factories --------------------------------------------------
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template<typename Opt> struct factories<legendre, matrix_valued,Opt> {
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typedef gf<legendre, matrix_valued,Opt> gf_t;
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typedef gf_mesh<legendre, Opt> mesh_t;
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static gf_t make_gf(double beta, statistic_enum S, tqa::mini_vector<size_t,2> shape, size_t n_leg) {
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typename gf_t::data_regular_t A(shape.front_append(n_leg)); A() = 0;
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return gf_t(gf_mesh<legendre,Opt>(beta, S, n_leg), std::move(A), nothing(), nothing());
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}
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};
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} // gfs_implementation
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}}
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#endif
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