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dft_tools/triqs/gfs/data_proxies.hpp
Olivier Parcollet 39edb2f846 [API change] gf : factories -> constructors
- Make more general constructors for the gf.
  gf( mesh, target_shape_t)
- remove the old make_gf for the basic gf.
- 2 var non generic gf removed.
- clean evaluator
- add tensor_valued
- add a simple vertex test.
- clean specialisation
- Fix bug introduced in 1906dc3
- forgot to resize the gf in new version of operator =
- Fix make_singularity in gf.hpp

- clean resize in operator =

- update h5 read/write for block gf
  - changed a bit the general trait to save *all* the gf.
  - allows a more general specialization, then a correct for blocks

- NOT FINISHED : need to save the block indice for python.
  How to reread ?
  Currently it read the blocks names and reconstitute the mesh from it.
  Is it sufficient ?

- clean block constructors

 - block constructors simplest possible : an int for the number of blocks
 - rest in free factories.
 - fixed the generic constructor from GfType for the regular type :
   only enable iif GfType is ImmutableGreenFunction

- multivar. fix linear index in C, and h5 format

  - linear index now correctly flatten in C mode
    (was in fortran mode), using a simple reverse of the tuple in the folding.
  - fix the h5 read write of the multivar fonctions
   in order to write an array on dimension # variables + dim_target
   i.e. without flattening the indices of the meshes.
   Easier for later data analysis, e.g. in Python.

- merge matrix/tensor_valued. improve factories

  - matrix_valued now = tensor_valued<2>
    (simplifies generic code for h5).
  - factories_one_var -> factories : this is the generic case ...
    only a few specialization, code is simpler.

- clef expression call with rvalue for *this
- generalize matrix_proxy to tensor and clean

 - clean exception catch in tests

  - exception catching catch in need in test
    because the silly OS X does not print anything, just "exception occurred".
    Very convenient for the developer...
  - BUT, one MUST add return 1, or the make test will *pass* !!
  - --> systematically replace the catch by a macro TRIQS_CATCH_AND_ABORT
    which return a non zero error code.
   - exception : curry_and_fourier which does not work at this stage
   (mesh incompatible).

- gf: clean draft of gf 2 times
  - comment the python interface for the moment.
  - rm useless tests
2013-10-21 15:11:44 +02:00

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/*******************************************************************************
*
* 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_DATA_PROXIES_H
#define TRIQS_GF_DATA_PROXIES_H
#include <triqs/utility/first_include.hpp>
#include <utility>
#include <triqs/arrays.hpp>
//#include "./matrix_view_proxy.hpp"
#include "../arrays/matrix_tensor_proxy.hpp"
namespace triqs { namespace gfs {
//---------------------------- generic case array of dim R----------------------------------
template<typename T, int R> struct data_proxy_array {
/// The storage
typedef arrays::array<T,R> storage_t;
typedef typename storage_t::view_type storage_view_t;
/// The data access
auto operator()(storage_t& data, long i) const DECL_AND_RETURN(arrays::make_tensor_proxy(data, i));
auto operator()(storage_t const& data, long i) const DECL_AND_RETURN(arrays::make_const_tensor_proxy(data, i));
auto operator()(storage_view_t& data, long i) const DECL_AND_RETURN(arrays::make_tensor_proxy(data, i));
auto operator()(storage_view_t const& data, long i) const DECL_AND_RETURN(arrays::make_const_tensor_proxy(data, i));
#ifdef TRIQS_GF_DATA_PROXIES_WITH_SIMPLE_VIEWS
auto operator()(storage_t & data, size_t i) const DECL_AND_RETURN(data(i,arrays::ellipsis()));
auto operator()(storage_t const & data, size_t i) const DECL_AND_RETURN(data(i,arrays::ellipsis()));
auto operator()(storage_view_t & data, size_t i) const DECL_AND_RETURN(data(i,arrays::ellipsis()));
auto operator()(storage_view_t const & data, size_t i) const DECL_AND_RETURN(data(i,arrays::ellipsis()));
#endif
template<typename S, typename RHS> static void assign_to_scalar (S & data, RHS && rhs) { data() = std::forward<RHS>(rhs);}
template<typename RHS> static void rebind (storage_view_t & data, RHS && rhs) { data.rebind(rhs.data()); }
};
//---------------------------- 3d array : returns matrices in this case ! ----------------------------------
template<typename T> struct data_proxy_array<T,3> {
/// The storage
typedef arrays::array<T,3> storage_t;
typedef typename storage_t::view_type storage_view_t;
/// The data access
auto operator()(storage_t& data, long i) const DECL_AND_RETURN(arrays::make_matrix_proxy(data, i));
auto operator()(storage_t const& data, long i) const DECL_AND_RETURN(arrays::make_const_matrix_proxy(data, i));
auto operator()(storage_view_t& data, long i) const DECL_AND_RETURN(arrays::make_matrix_proxy(data, i));
auto operator()(storage_view_t const& data, long i) const DECL_AND_RETURN(arrays::make_const_matrix_proxy(data, i));
#ifdef TRIQS_DATA_PROXIES_OLD_MATRIX_VIEW_PROXY
arrays::matrix_view_proxy<storage_t,0> operator()(storage_t & data, size_t i) const { return arrays::matrix_view_proxy<storage_t,0>(data,i); }
arrays::const_matrix_view_proxy<storage_t,0> operator()(storage_t const & data, size_t i) const { return arrays::const_matrix_view_proxy<storage_t,0>(data,i); }
arrays::matrix_view_proxy<storage_view_t,0> operator()(storage_view_t & data, size_t i) const { return arrays::matrix_view_proxy<storage_view_t,0>(data,i); }
arrays::const_matrix_view_proxy<storage_view_t,0> operator()(storage_view_t const & data, size_t i) const { return arrays::const_matrix_view_proxy<storage_view_t,0>(data,i); }
#endif
#ifdef TRIQS_GF_DATA_PROXIES_WITH_SIMPLE_VIEWS
auto operator()(storage_t & data, size_t i) const DECL_AND_RETURN(data(i,arrays::ellipsis()));
auto operator()(storage_t const & data, size_t i) const DECL_AND_RETURN(data(i,arrays::ellipsis()));
auto operator()(storage_view_t & data, size_t i) const DECL_AND_RETURN(data(i,arrays::ellipsis()));
auto operator()(storage_view_t const & data, size_t i) const DECL_AND_RETURN(data(i,arrays::ellipsis()));
#endif
template<typename S, typename RHS> static void assign_to_scalar (S & data, RHS && rhs) { data() = std::forward<RHS>(rhs);}
template<typename RHS> static void rebind (storage_view_t & data, RHS && rhs) { data.rebind(rhs.data()); }
};
//---------------------------- 1d array ----------------------------------
template<typename T> struct data_proxy_array<T,1>{
/// The storage
typedef arrays::array<T,1> storage_t;
typedef typename storage_t::view_type storage_view_t;
/// The data access
auto operator()(storage_t & data,size_t i) const -> decltype(data(i)) { return data(i);}
auto operator()(storage_t const & data,size_t i) const -> decltype(data(i)) { return data(i);}
auto operator()(storage_view_t & data,size_t i) const -> decltype(data(i)) { return data(i);}
auto operator()(storage_view_t const & data,size_t i) const -> decltype(data(i)) { return data(i);}
template<typename S, typename RHS> static void assign_to_scalar (S & data, RHS && rhs) { data() = std::forward<RHS>(rhs);}
template<typename RHS> static void rebind (storage_view_t & data, RHS && rhs) { data.rebind(rhs.data()); }
};
//---------------------------- vector ----------------------------------
template<typename T> struct data_proxy_vector {
typedef typename T::view_type Tv;
/// The storage
typedef std::vector<T> storage_t;
typedef std::vector<Tv> storage_view_t;
/// The data access
T & operator()(storage_t & data, size_t i) { return data[i];}
T const & operator()(storage_t const & data, size_t i) const { return data[i];}
Tv & operator()(storage_view_t & data, size_t i) { return data[i];}
Tv const & operator()(storage_view_t const & data, size_t i) const { return data[i];}
template<typename S, typename RHS> static void assign_to_scalar (S & data, RHS && rhs) {for (size_t i =0; i<data.size(); ++i) data[i] = rhs;}
template<typename RHS> static void rebind (storage_view_t & data, RHS && rhs) { data.clear(); for (auto & x : rhs.data()) data.push_back(x);}
};
//---------------------------- lambda ----------------------------------
template<typename F> struct data_proxy_lambda {
/// The storage
typedef F storage_t;
typedef F storage_view_t;
/// The data access
auto operator()(storage_t & data, size_t i) DECL_AND_RETURN( data(i));
auto operator()(storage_t const & data, size_t i) const DECL_AND_RETURN( data(i));
template<typename S, typename RHS> static void assign_to_scalar (S & data, RHS && rhs) = delete;
template<typename RHS> static void rebind (storage_view_t & data, RHS && rhs) = delete;// { data = std::forward<RHS>(rhs);}
};
}}
#endif