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// Copyright (C) 2009-2012 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0
// (see accompanying file LICENSE_1_0.txt or a copy at
// Home at

#include <boost/local_function.hpp>
#include <boost/typeof/typeof.hpp>
#include <iostream>
#include <cassert>

struct n {
    int i;
    n(int _i): i(_i) {}
    n(n const& x): i(x.i) { // Some time consuming copy operation.
        for (unsigned i = 0; i < 10000; ++i) std::cout << '.';
BOOST_TYPEOF_REGISTER_TYPE(n) // Register for `bind& x` below.

int main(void) {
    n x(-1);

    void BOOST_LOCAL_FUNCTION(const bind& x) {  // OK: No copy expensive
        assert(x.i == -1);                      // copy but constant.

    return 0;