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