mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 03:33:50 +01:00
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
|
|
/*******************************************************************************
|
|
*
|
|
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
|
|
*
|
|
* Copyright (C) 2013 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/>.
|
|
*
|
|
******************************************************************************/
|
|
#include <triqs/utility/dressed_iterator.hpp>
|
|
#include <iostream>
|
|
#include <map>
|
|
using namespace triqs::utility;
|
|
|
|
struct S {
|
|
|
|
typedef std::map<double, int> m_t;
|
|
typedef m_t::const_iterator mcit_t;
|
|
typedef m_t::iterator mit_t;
|
|
m_t m;
|
|
|
|
struct _cdress {double const & tau; int const & a; m_t const * m; _cdress( mcit_t const & it, m_t const * mm): tau(it->first), a(it->second),m(mm){} };
|
|
|
|
// const iterator with cyclic condition
|
|
struct const_iterator : public dressed_iterator< mcit_t,_cdress, m_t const> {
|
|
const_iterator (mcit_t it, m_t const * m): dressed_iterator<mcit_t,_cdress, m_t const>(it,m) {}
|
|
friend const_iterator next_cyclic(const_iterator it) {
|
|
++it;
|
|
if (it.get() == it.get_aux()->end()) return const_iterator(it.get_aux()->begin(),it.get_aux());
|
|
else return it;
|
|
}
|
|
};
|
|
const_iterator begin() const { return const_iterator(m.begin(),&m);}
|
|
const_iterator end() const { return const_iterator(m.end(),&m);}
|
|
|
|
};
|
|
|
|
|
|
|
|
int main() {
|
|
|
|
S s;
|
|
s.m.insert(std::make_pair(8.4,2));
|
|
s.m.insert(std::make_pair(1.3,1));
|
|
|
|
for (auto const & p : s) std::cout << p.tau << " -- "<< p.a << std::endl;
|
|
//for (auto const & p : s.m) std::cout << p.first << " -- "<< p.second << std::endl;
|
|
|
|
auto it = s.begin();
|
|
std::cout << it->tau << std::endl ;
|
|
++it;
|
|
std::cout << it->tau << std::endl ;
|
|
it = next_cyclic(it);
|
|
std::cout << it->tau << std::endl ;
|
|
|
|
|
|
}
|