项目概览

basic type

• ByteBuffer
• String
• Optional<T>
• Vector<T>
• SharedPtr<T>
• UniquePtr<T>
• Variant<T ...>

basic interface

• Read
• Write

Time Utils

• TimePoint
• TimeDuration
• time_now
• time_diff

Examples

TimePoint before = time_now();
// do something
TimePoint after = time_now();
TimeDuration duration = time_diff(before, after);

Math Utils

• ceil_pow2

File System

• is_directory
• is_file
• exists
• make_dirs
• relative_path
• list_dir
• get_parent_path
• get_file_name
• join_path
• File

Command Line Parser

int main(int argc, const char* const argv[])
{
    nx::cmd::CmdParserBuilder args_1;
    args_1.add_argument("age", nx::cmd::ArgumentType::INT);
    args_1.set_handler([](const nx::cmd::CmdParser* args_1) {
        int age = args_1->get<int>("age");
        std::cout << "age: " << age << std::endl;
        return 0;
    });
    auto cmd_a = args_1.build();
 
    nx::cmd::CmdParserBuilder args_2;
    args_2.add_argument("num", nx::cmd::ArgumentType::INT);
    args_2.set_handler([](const nx::cmd::CmdParser* args_2) {
        int num = args_2->get<int>("num");
        std::cout << "num: " << num << std::endl;
        return 0;
    });
    auto cmd_b = args_2.build();
 
    auto group_cmd = std::make_unique<nx::cmd::GroupCmd>();
    group_cmd->add_sub_command(
        "a", std::make_unique<nx::cmd::SingleCmd>(std::move(cmd_a)));
    group_cmd->add_sub_command(
        "b", std::make_unique<nx::cmd::SingleCmd>(std::move(cmd_b)));
 
    nx::cmd::GroupCmd group_cmd_a;
    group_cmd_a.add_sub_command("test", std::move(group_cmd));
 
    return group_cmd_a.handle_cmd(argc, argv);
}