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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 | // akrzemi1@gmail.com | |
11 | ||
12 | #include "boost/optional/optional.hpp" | |
13 | ||
20effc67 | 14 | #ifdef BOOST_BORLANDC |
b32b8144 FG |
15 | #pragma hdrstop |
16 | #endif | |
17 | ||
18 | boost::optional<int> getitem(); | |
19 | ||
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 | } |