mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 19:53:45 +01:00
83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
/*******************************************************************************
|
|
*
|
|
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
|
|
*
|
|
* Copyright (C) 2011 by 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_ARRAYS_INDEXMAP_COMMON_H
|
|
#define TRIQS_ARRAYS_INDEXMAP_COMMON_H
|
|
#include "../impl/common.hpp"
|
|
#include <triqs/utility/mini_vector.hpp>
|
|
//#include "../impl/tuple_tools.hpp"
|
|
#include <iostream>
|
|
|
|
namespace boost { namespace serialization { class access;}}
|
|
namespace triqs { namespace arrays { namespace Tag {struct indexmap{}; }}}
|
|
|
|
namespace triqs { namespace arrays {
|
|
using utility::mini_vector;
|
|
|
|
// make_shape
|
|
template<typename... T>
|
|
mini_vector<size_t, sizeof...(T)+1> make_shape(size_t x0, T... args) { return mini_vector<size_t, sizeof...(T)+1> (x0,args...);}
|
|
|
|
namespace indexmaps {
|
|
|
|
// to be specialized for all IndexMap types.
|
|
template<typename IndexMap, typename... Args> struct slicer;
|
|
|
|
/// Returns whether the 2 indexMaps are compatible with A op B (op : = , +, etc...)
|
|
template< typename IndexMap1, typename IndexMap2>
|
|
bool compatible_for_binary_ops (const IndexMap1 &, const IndexMap2 &);
|
|
|
|
// The generator of indices for an index domain.
|
|
template<typename Domain, typename Parameter> class indices_generator;
|
|
|
|
/**
|
|
* Is a raw copy possible between 2 arrays with these indexMaps ?
|
|
* They have to have the same ordering, and be contiguous typically.
|
|
*/
|
|
template< typename IndexMap1, typename IndexMap2>
|
|
bool raw_copy_possible (const IndexMap1 &, const IndexMap2 &);
|
|
|
|
/**
|
|
* Metafunction.
|
|
* Given an IndexMapIterator and an IndexMap,
|
|
* ::type should be the iterator of IndexMap which traverses
|
|
* the indices in the same order as IndexMapIterator.
|
|
* Example :
|
|
* - IndexMapIterator is a parallelepipedon_iterator < SomeParallelepipedon, So
|
|
meIterationOrder>
|
|
* - IndexMap is AnotherParallelepipedon (e.g. with a different memory storage)
|
|
.
|
|
* - type is then parallelepipedon_iterator < AnotherParallelepipedon, SomeIter
|
|
ationOrder>
|
|
* Application example :
|
|
* A = B with A, B in different order in memory.
|
|
* One takes the optimized iterator on A, this defines the order of indices
|
|
traversal,
|
|
* and use indexmap_iterator_adapter to deduce the iterator on B that traver
|
|
se the indices in the same way.
|
|
*/
|
|
//template <typename IndexMapIterator, typename IndexMap>
|
|
// struct indexmap_iterator_adapter;
|
|
|
|
}}}//namespace triqs::arrays
|
|
#endif
|
|
|
|
|