mirror of
https://github.com/triqs/dft_tools
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58 lines
2.8 KiB
C++
58 lines
2.8 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) 2011-2013 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_TOOLS_MC_IMPL_TOOLS_H
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#define TRIQS_TOOLS_MC_IMPL_TOOLS_H
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#include <triqs/utility/first_include.hpp>
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#include <triqs/h5.hpp>
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#include <string>
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namespace triqs { namespace mc_tools {
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template<typename T, typename Enable=void> struct has_h5_read : std::false_type {};
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template<typename T> struct has_h5_read<T, decltype(h5_read(std::declval<h5::group>(), std::string(), std::declval<T>()))> : std::true_type {};
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template<typename T, typename Enable=void> struct has_h5_write : std::false_type {};
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template<typename T> struct has_h5_write<T, decltype(h5_read(std::declval<h5::group>(), std::string(), std::declval<T>()))> : std::true_type {};
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typedef std::function<void(h5::group, std::string const &)> h5_rw_lambda_t;
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// given a pointer to an object, synthesize h5_read/write function for this object
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template<typename T> h5_rw_lambda_t make_h5_write_impl(T * p, std::true_type) {
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return [p](h5::group F, std::string const &Name) {h5_write(F,Name, *p);};
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}
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template<typename T> h5_rw_lambda_t make_h5_read_impl(T * p, std::true_type) {
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return [p](h5::group F, std::string const &Name) {h5_read(F,Name, *p);};
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}
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template<typename T> h5_rw_lambda_t make_h5_read_impl (T * p, std::false_type) { return h5_rw_lambda_t();}
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template<typename T> h5_rw_lambda_t make_h5_write_impl(T * p, std::false_type) { return h5_rw_lambda_t();}
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template<typename T> h5_rw_lambda_t make_h5_write(T * p) { return make_h5_write_impl(p,std::integral_constant<bool,has_h5_write<T>::value>());}
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template<typename T> h5_rw_lambda_t make_h5_read (T * p) { return make_h5_read_impl (p,std::integral_constant<bool,has_h5_read <T>::value>());}
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// move_construtible is not in gcc 4.6 std lib
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template<class T>
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struct is_move_constructible : std::is_constructible<T, typename std::add_rvalue_reference<T>::type> {};
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}}// end namespace
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#endif
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