mirror of
https://github.com/triqs/dft_tools
synced 2024-12-25 13:53:40 +01:00
8c725f8d5e
- h5/make_h5.... only used in parameters. - old boost includes before C++11 - remove boost serialization, make macro TRIQS_MAKE_NVP temporarely - remove boost::is_complex (can be written in 2 lines...) - move some lib in cpp
97 lines
4.3 KiB
C++
97 lines
4.3 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_UTILITY_VALUE_VIEW_H
|
|
#define TRIQS_UTILITY_VALUE_VIEW_H
|
|
#include <memory>
|
|
#include <triqs/arrays/array.hpp>
|
|
#include <triqs/arrays/h5.hpp>
|
|
|
|
namespace triqs {
|
|
|
|
/// a class to keep a value and the view on it in a manner similar to arrays, gf, etc...
|
|
template<typename T, bool IsView > class value_view;
|
|
|
|
template<typename T> class value_view<T,true> {
|
|
|
|
std::shared_ptr<T> p;
|
|
friend class value_view<T,false>;
|
|
|
|
public:
|
|
typedef value_view<T,true> view_type;
|
|
typedef value_view<T,false> regular_type;
|
|
typedef typename std::remove_cv<typename std::remove_reference <T>::type >::type value_type;
|
|
value_view( regular_type const & a) { p = a.p;}
|
|
value_view( view_type const & a) { p = a.p;}
|
|
void rebind( view_type const &X) { p = X.p; }
|
|
|
|
T & operator()() { return *p;}
|
|
T const & operator()() const { return *p;}
|
|
operator T() { return *p;}
|
|
operator T const() const { return *p;}
|
|
value_view & operator=(view_type const & x) { if (!p) rebind(x); else { *p = *x.p;} return *this;}
|
|
value_view & operator=(regular_type const & x) { if (!p) rebind(x); else { *p = *x.p;} return *this;}
|
|
value_view & operator=(T const & x) { *p = x; return *this;}
|
|
|
|
friend void h5_write (arrays::h5::group_or_file fg, std::string p, value_view const & v) { h5_write(fg,p,v()); }
|
|
friend void h5_read (arrays::h5::group_or_file fg, std::string p, value_view & v) { h5_read (fg,p,v()); }
|
|
// Boost serialization. Can I use std::shared_ptr directly ? Or use boost::shared_ptr
|
|
friend class boost::serialization::access;
|
|
template<class Archive>
|
|
void save(Archive & ar, const unsigned int version) const { ar << TRIQS_MAKE_NVP("data",*p); }
|
|
template<class Archive>
|
|
void load(Archive & ar, const unsigned int version) { T x; ar >> x; p = std::make_shared<T>(x); }
|
|
BOOST_SERIALIZATION_SPLIT_MEMBER();
|
|
};
|
|
|
|
template<typename T> class value_view<T,false> {
|
|
std::shared_ptr<T> p;
|
|
friend class value_view<T,true>;
|
|
public:
|
|
typedef value_view<T,true> view_type;
|
|
typedef value_view<T,false> regular_type;
|
|
typedef typename std::remove_cv<typename std::remove_reference <T>::type >::type value_type;
|
|
value_view( regular_type const & a) { p = std::make_shared<T>(*a.p);}
|
|
value_view( view_type const & a) { p = std::make_shared<T>(*a.p);}
|
|
template<typename... Args> explicit value_view(Args&&... args) {p = std::make_shared<T>(std::forward<Args>(args)...);}
|
|
T & operator()() { return *p;}
|
|
T const & operator()() const { return *p;}
|
|
operator T() { return *p;}
|
|
operator T const() const { return *p;}
|
|
value_view& operator=(view_type const & x) { *p = *x.p;return *this;}
|
|
value_view& operator=(regular_type const & x) { *p = *x.p;return *this;}
|
|
value_view& operator=(T const & x) { *p = x; return *this;}
|
|
|
|
friend void h5_write (arrays::h5::group_or_file fg, std::string p, value_view const & v) { h5_write(fg,p,v()); }
|
|
friend void h5_read (arrays::h5::group_or_file fg, std::string p, value_view & v) { h5_read(fg,p,v()); }
|
|
|
|
// Boost serialization. Can I use std::shared_ptr directly ? Or use boost::shared_ptr
|
|
friend class boost::serialization::access;
|
|
template<class Archive>
|
|
void save(Archive & ar, const unsigned int version) const { ar << TRIQS_MAKE_NVP("data",*p); }
|
|
template<class Archive>
|
|
void load(Archive & ar, const unsigned int version) { T x; ar >> x; p = std::make_shared<T>(x); }
|
|
BOOST_SERIALIZATION_SPLIT_MEMBER();
|
|
};
|
|
|
|
}//namespace triqs
|
|
#endif
|
|
|