mirror of
https://github.com/triqs/dft_tools
synced 2024-12-26 14:23:38 +01:00
86 lines
2.5 KiB
C++
86 lines
2.5 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 by 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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#include "./common.hpp"
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#include <triqs/arrays/array.hpp>
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#include <iostream>
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using std::cout; using std::endl;
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using namespace triqs::arrays;
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int main(int argc, char **argv) {
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array<long,2> A (2,3);
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// first print the index generator
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for (array<long,2>::indexmap_type::domain_type::generator it = A.indexmap().domain().begin(); it; ++it)
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std::cout<<" "<<*it<<std::endl;
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std::cout<<std::endl;
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for (array<long,2>::indexmap_type::domain_type::gal_generator <permutations::permutation(0,1) >
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it(A.indexmap().domain()); it; ++it)
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std::cout<<" "<<*it<<std::endl;
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std::cout<<std::endl;
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for (array<long,2>::indexmap_type::domain_type::gal_generator < permutations::permutation(1,0) >
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it(A.indexmap().domain()); it; ++it)
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std::cout<<" "<<*it<<std::endl;
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std::cout<<std::endl;
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std::cout<<" C order : traversal"<<std::endl;
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for (array<long,2>::iterator it = A.begin(); it; ++it) {
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*it =it.indices()[0] + 10 *it.indices()[1] ;
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std::cout<<" i,j = "<<it.indices()<<std::endl;
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}
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std::cout <<"A = i + 10*j"<<A<<std::endl;
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int u=0;
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for (array<long,2>::iterator it = A.begin(); it; ++it,++u) {
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*it =u;
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std::cout<<" i,j = "<<it.indices()<<std::endl;
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}
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std::cout <<"A = order of visit "<<A<<std::endl;
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std::cout<<" F order : traversal"<<std::endl;
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array<long,2,TRAVERSAL_ORDER_FORTRAN> Af (2,3);
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for (auto it = Af.begin(); it; ++it) {
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*it =it.indices()[0] + 10 *it.indices()[1] ;
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std::cout<<" i,j = "<<it.indices()<<std::endl;
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}
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std::cout <<"A = i + 10*j"<<Af<<std::endl;
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u=0;
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for (auto it = Af.begin(); it; ++it,++u) {
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*it = -u;
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std::cout<<" i,j = "<<it.indices()<<std::endl;
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}
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std::cout <<"Af = order of visit "<<Af<<std::endl;
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return 0;
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}
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