1 // Copyright (C) 2017 Andrzej Krzemienski.
2 //
3 // Use, modification, and distribution is subject to the Boost Software
4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
6 //
7 // See http://www.boost.org/lib/optional for documentation.
8 //
9 // You are welcome to contact the author at:
10 //  [email protected]
11 
12 #include "boost/optional/optional.hpp"
13 
14 #ifdef BOOST_BORLANDC
15 #pragma hdrstop
16 #endif
17 
18 boost::optional<int> getitem();
19 
main(int argc,const char * [])20 int main(int argc, const char *[])
21 {
22   boost::optional<int> a = getitem();
23   boost::optional<int> b;
24 
25   if (argc > 0)
26     b = argc;
27 
28   if (a == b)
29     return 1;
30 
31   return 0;
32 }