dft_tools/test/triqs/arrays/array_cache2.cpp

/*******************************************************************************
 *
 * 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"
#define TRIQS_ARRAYS_CACHE_COPY_VERBOSE
#include "./src/cache.hpp"
#include <iostream>

using namespace triqs::arrays;

void f( array_view<long,2>  A, long u) { 
 A(0,0) = u;
}

int main(int argc, char **argv) {

 
 array<long,2> A (2,3, FORTRAN_LAYOUT);

 for (int i =0; i<2; ++i)
  for (int j=0; j<3; ++j) 
   A(i,j) = 10*i+ j;

 for (int i =0; i<2; ++i)
  for (int j=0; j<3; ++j) 
   std::cout<<"A "<<A(i,j)<<std::endl;

 array<long,2 > Ac (A);

 std::cout<<"A = "<<A<<std::endl;
 std::cout<<"Ac = "<<Ac<<std::endl;

 std::cout<<"----------"<<std::endl;
 std::cout<<"Expr = "<< make_const_cache(2*A).view() <<std::endl;

 std::cout<<"----------"<<std::endl;
 std::cout<<"A F->C = "<< make_const_cache(A).view() <<std::endl;

 std::cout<<"----------"<<std::endl;
 std::cout<<"A C->C = "<< make_const_cache(Ac).view() <<std::endl;

 std::cout<<"----------"<<std::endl;
 f(make_cache(Ac),287);
 std::cout<<"Ac = "<<Ac<<std::endl;

 std::cout<<"----------"<<std::endl;
 f(make_cache(A ),287);
 std::cout<<"A = "<<A<<std::endl;

 std::cout<<"----------"<<std::endl;
 std::cout<<"A = "<<A<<std::endl;
 std::cout<<"A(range(0,1),range(1,2) ) = "<<A( range(0,1),range(1,2) )<<std::endl;

 array_view <long,2> V(A(range(0,1), range(1,2)));
 array_view <long,2> Vc(Ac(range(0,1), range(1,2)));

 Vc(0,0) = 300;

 V = Vc;
 std::cout<<"A = "<<A<<std::endl;
 std::cout<<"Ac = "<<Ac<<std::endl;

 f(make_cache(V),156);
 std::cout<<"A = "<<A<<std::endl;
 std::cout<<"Ac = "<<Ac<<std::endl;


 return 0;
}