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dft_tools/test/triqs/utility/buffered_function.cpp
Olivier Parcollet e6529b608e Change implementation of random_generator & python wrapper.
- Use a new buffered_function to replace the complicated generator code from ALPS.
- Clean the implementation of the random_generator
- update the documentation
- update to the new python wrapper (could not be done with the previous
  version, because of lack of move constructor).
2014-05-29 22:25:22 +02:00

38 lines
1.3 KiB
C++

/*******************************************************************************
*
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
*
* Copyright (C) 2014 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/buffered_function.hpp>
#include <iostream>
int main(int argc, char **argv) {
// a function that generates all the square ....
int x = 0;
auto f = [x]() mutable { return x * (x++); };
// C++14 : init-capture
// auto f = [x=0]() mutable { return x*(x++);};
auto gen = triqs::utility::buffered_function<double>(f, 5);
for (int u = 0; u < 22; ++u)
if (gen() != u * u) throw "Error";
}