1 | // Distributed under the Boost Software License, Version 1.0. |
2 | // (See accompanying file LICENSE_1_0.txt |
3 | // or copy at http://www.boost.org/LICENSE_1_0.txt) |
4 | |
5 | #include <boost/program_options.hpp> |
6 | namespace po = boost::program_options; |
7 | |
8 | #include <boost/optional.hpp> |
9 | |
10 | #include <string> |
11 | |
12 | #include "minitest.hpp" |
13 | |
14 | std::vector<std::string> sv(const char* array[], unsigned size) |
15 | { |
16 | std::vector<std::string> r; |
17 | for (unsigned i = 0; i < size; ++i) |
18 | r.push_back(x: array[i]); |
19 | return r; |
20 | } |
21 | |
22 | void test_optional() |
23 | { |
24 | boost::optional<int> foo, bar, baz; |
25 | |
26 | po::options_description desc; |
27 | desc.add_options() |
28 | ("foo,f" , po::value(v: &foo), "" ) |
29 | ("bar,b" , po::value(v: &bar), "" ) |
30 | ("baz,z" , po::value(v: &baz), "" ) |
31 | ; |
32 | |
33 | const char* cmdline1_[] = { "--foo=12" , "--bar" , "1" }; |
34 | std::vector<std::string> cmdline1 = sv(array: cmdline1_, |
35 | size: sizeof(cmdline1_)/sizeof(const char*)); |
36 | po::variables_map vm; |
37 | po::store(options: po::command_line_parser(cmdline1).options(desc).run(), m&: vm); |
38 | po::notify(m&: vm); |
39 | |
40 | BOOST_REQUIRE(!!foo); |
41 | BOOST_CHECK(*foo == 12); |
42 | |
43 | BOOST_REQUIRE(!!bar); |
44 | BOOST_CHECK(*bar == 1); |
45 | |
46 | BOOST_CHECK(!baz); |
47 | } |
48 | |
49 | int main(int, char*[]) |
50 | { |
51 | test_optional(); |
52 | return 0; |
53 | } |
54 | |