Imported Upstream version 1.57.0
[platform/upstream/boost.git] / libs / local_function / test / goto_error.cpp
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(1, 2);
32     return 0;
33 }
34
35 #endif
36