| 1 | |
|---|---|
| 2 | // Copyright (C) 2009-2012 Lorenzo Caminiti |
| 3 | // Distributed under the Boost Software License, Version 1.0 |
| 4 | // (see accompanying file LICENSE_1_0.txt or a copy at |
| 5 | // http://www.boost.org/LICENSE_1_0.txt) |
| 6 | // Home at http://www.boost.org/libs/local_function |
| 7 | |
| 8 | #include <boost/config.hpp> |
| 9 | #ifdef BOOST_NO_CXX11_VARIADIC_MACROS |
| 10 | # error "variadic macros required" |
| 11 | #else |
| 12 | |
| 13 | #include <boost/local_function.hpp> |
| 14 | |
| 15 | //[goto_error |
| 16 | int error(int x, int y) { |
| 17 | int BOOST_LOCAL_FUNCTION(int z) { |
| 18 | if(z <= 0) goto failure; // Error: Cannot jump to enclosing scope. |
| 19 | else goto success; // OK: Can jump within local function. |
| 20 | success: |
| 21 | return 0; |
| 22 | } BOOST_LOCAL_FUNCTION_NAME(validate) |
| 23 | |
| 24 | return validate(x + y); |
| 25 | failure: |
| 26 | return -1; |
| 27 | } |
| 28 | //] |
| 29 | |
| 30 | int main(void) { |
| 31 | error(x: 1, y: 2); |
| 32 | return 0; |
| 33 | } |
| 34 | |
| 35 | #endif |
| 36 | |
| 37 |