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1 | // Copyright (C) 2014-2015 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 |
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15 | #pragma hdrstop |
16 | #endif | |
17 | ||
20effc67 | 18 | #include <string> |
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19 | #include "boost/core/lightweight_test.hpp" |
20 | #include "boost/none.hpp" | |
21 | ||
22 | class NonConstructible | |
23 | { | |
24 | private: | |
25 | NonConstructible(); | |
26 | NonConstructible(NonConstructible const&); | |
27 | #if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES) | |
28 | NonConstructible(NonConstructible &&); | |
29 | #endif | |
30 | }; | |
31 | ||
32 | void test_non_constructible() | |
33 | { | |
34 | boost::optional<NonConstructible> o; | |
35 | BOOST_TEST(!o); | |
36 | BOOST_TEST(o == boost::none); | |
37 | BOOST_TEST_THROWS(o.value(), boost::bad_optional_access); | |
38 | } | |
39 | ||
40 | class Guard | |
41 | { | |
42 | public: | |
43 | explicit Guard(int) {} | |
44 | private: | |
45 | Guard(); | |
46 | Guard(Guard const&); | |
47 | #if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES) | |
48 | Guard(Guard &&); | |
49 | #endif | |
50 | }; | |
51 | ||
52 | void test_guard() | |
53 | { | |
54 | boost::optional<Guard> o; | |
55 | o.emplace(1); | |
56 | BOOST_TEST(o); | |
57 | BOOST_TEST(o != boost::none); | |
58 | } | |
59 | ||
60 | void test_non_assignable() | |
61 | { | |
62 | boost::optional<const std::string> o; | |
63 | o.emplace("cat"); | |
64 | BOOST_TEST(o); | |
65 | BOOST_TEST(o != boost::none); | |
66 | BOOST_TEST_EQ(*o, std::string("cat")); | |
67 | } | |
68 | ||
69 | int main() | |
70 | { | |
71 | test_non_constructible(); | |
72 | test_guard(); | |
73 | test_non_assignable(); | |
74 | ||
75 | return boost::report_errors(); | |
76 | } |