local_function/test/goto_error.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>
#ifndef BOOST_NO_VARIADIC_MACROS

#include <boost/local_function.hpp>
#define BOOST_TEST_MODULE TestGotoError
#include <boost/test/unit_test.hpp>

//[goto_error
int error(int x, int y) {
    int BOOST_LOCAL_FUNCTION(int x) {
        if(x <= 0) goto failure;    // Error: Cannot jump to enclosing scope.
        else goto success;          // OK: Can jump within local function.
    success:
        return 0;
    } BOOST_LOCAL_FUNCTION_NAME(validate)

    return validate(x + y);
faliure:
    return -1;
}
//]

BOOST_AUTO_TEST_CASE(test_goto_error) {
    error(1, 2);
}

#else

#error "Trivial error."

#endif