/*******************************************************************************
 *
 * 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>

using std::cout; using std::endl;
using namespace triqs::arrays;
 
#include <boost/function.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/lambda/bind.hpp>

namespace BLL=boost::lambda;

struct S {
 double x,y;
 int i;
 S(): x(0), y(0), i(0) {} 
 S(double x0, double y0, int i0): x(x0), y(y0), i(i0) {} 
};

double my_fun(double x, double y) { return x+y;}

std::ostream & operator << (std::ostream & out, S const & s) { return out<<"("<<s.x<<" "<<s.y<<" "<<s.i<<")";}
//std::ostream & operator << (std::ostream & out, S const & s) { return out<<std::make_tuple(s.x,s.y,s.i);}

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


 array<S,2> A(2,2);

 S s0(1,2,3);
 int p=0;
 for (int i =0; i<2; ++i)
  for (int j=0; j<2; ++j,++p) 
       A(i,j) = S(i,j,p);

 std::cout<<"  A "<<A<<A(range(),0)<<std::endl;

 A() = s0;
 std::cout<<"  A "<<A<<A(range(),0)<<std::endl;

 array< array<double,1>, 2> AA(2,2);

 array<double,1> A0(2); 
 for (int i =0; i<2; ++i)
     A0(i) = i; 

 AA()=A0;

 std::cout<<"  AA "<<AA<<std::endl;
 
 std::cout<<AA(0,0)<<std::endl;

 // even more  : a matrix of functions !
 matrix< boost::function<double(double) > > F (2,2);

for (int i =0; i<2; ++i)
  for (int j=0; j<2; ++j,++p) 
    F(i,j) = BLL::bind(&my_fun, BLL::_1, i+j); 

for (int i =0; i<2; ++i)
  for (int j=0; j<2; ++j,++p) 
    std::cout<<F(i,j)(0)<<std::endl; 

 return 0;
}