boost/libs/local_function/test/nesting.cpp

// 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
// http://www.boost.org/LICENSE_1_0.txt)
// Home at http://www.boost.org/libs/local_function

#include <boost/config.hpp>
#ifdef BOOST_NO_CXX11_VARIADIC_MACROS
#   error "variadic macros required"
#else

#include <boost/local_function.hpp>
#include <boost/detail/lightweight_test.hpp>

int main(void) {
    //[nesting
    int x = 0;

    void BOOST_LOCAL_FUNCTION(bind& x) {
        void BOOST_LOCAL_FUNCTION(bind& x) { // Nested.
            x++;
        } BOOST_LOCAL_FUNCTION_NAME(g)

        x--;
        g(); // Nested local function call.
    } BOOST_LOCAL_FUNCTION_NAME(f)
    
    f();
    //]

    BOOST_TEST(x == 0);
    return boost::report_errors();
}

#endif // VARIADIC_MACROS