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dft_tools/test/triqs/arrays/ellipsis.cpp
Olivier Parcollet f2c7d449cc First commit : triqs libs version 1.0 alpha1
for earlier commits, see TRIQS0.x repository.
2013-07-17 19:24:07 +02:00

76 lines
2.0 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/>.
*
******************************************************************************/
#include "./common.hpp"
#include "./src/array.hpp"
#include "./src/matrix.hpp"
#include <iostream>
#include "./src/asserts.hpp"
using namespace triqs::arrays;
template<typename ArrayType>
array_view<typename ArrayType::value_type, ArrayType::rank-1> sum0 (ArrayType const & A) {
array<typename ArrayType::value_type, ArrayType::rank-1> res = A(0,ellipsis());
for (size_t u =1; u< A.shape()[0]; ++u) res += A(u,ellipsis());
return res;
}
int main(int argc, char **argv) {
{
array<long,3> A(2,3,4) ;
A() = 7;
std::cerr<< A(0, ellipsis() ) <<std::endl;
array<long,4> B(2,3,4,5) ;
B() = 8;
std::cerr<< B(0, ellipsis(), 3 ) <<std::endl;
std::cerr<< B(0, ellipsis(), 2, 3 ) <<std::endl;
std::cerr<< B( ellipsis(), 2, 3 ) <<std::endl;
assert_all_close (B(0, ellipsis(), 3 ) , B(0, range(),range(), 3 ) , 1.e-15);
assert_all_close (B(0, ellipsis(),2, 3 ) , B(0, range(), 2, 3 ) , 1.e-15);
assert_all_close (B( ellipsis(),2, 3 ) , B( range(),range(), 2, 3 ) , 1.e-15);
std::cerr << B.shape() <<std::endl;
}
///.....
{
array<double,2> A(5,2); A() =2;
array<double,3> B(5,2,3); B() = 3;
std::cerr<< sum0(A) << sum0(B) <<std::endl;
}
return 0;
}