Class FlagGroup

lib/config/flags.h:9–43

class OptionProto;

class FlagGroup
{
public:
    FlagGroup();
    FlagGroup(std::initializer_list<FlagGroup*> groups);

public:
    void parseFlags(
        int argc,
        const char* argv[],
        std::function<bool(const std::string&)> callback =
            [](const auto&)
        {
            return false;
        });
    std::vector<std::string> parseFlagsWithFilenames(
        int argc,
        const char* argv[],
        std::function<bool(const std::string&)> callback =
            [](const auto&)
        {
            return false;
        });
    void parseFlagsWithConfigFiles(int argc,
        const char* argv[],
        const std::map<std::string, const ConfigProto*>& configFiles);

    void addFlag(Flag* flag);
    void checkInitialised() const;

private:
    bool _initialised = false;
    const std::vector<FlagGroup*> _groups;
    std::vector<Flag*> _flags;
};

class Flag
{