#include <iostream>
#include <boost/phoenix.hpp>

// clang error with C++11 flag.
/*/home/XXXXX/code/boost_1_53_0/boost/proto/transform/default.hpp:154:41: error: read-only variable is not assignable
        BOOST_PROTO_BINARY_DEFAULT_EVAL(=, assign, make_mutable, make)
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ...
*/

namespace phoenix = boost::phoenix;
using namespace phoenix::local_names;

int main(int argc, char *argv[])
{
  phoenix::lambda(_a=17)[
    _a = 18,
    std::cout << _a << std::endl
  ]()();
  
  return 0;
}