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#ifndef CFG_HH
#define CFG_HH
#include <memory>
#include <optional>
#include <string_view>
#include <vector>
namespace cfg {
class Config {
public:
virtual ~Config() = default;
[[nodiscard]]
virtual std::optional<std::string_view> get(std::string_view name) const = 0;
[[nodiscard]]
bool has(std::string_view name) const;
[[nodiscard]]
std::optional<int64_t> get_int64(std::string_view name) const;
[[nodiscard]]
std::optional<uint64_t> get_uint64(std::string_view name) const;
[[nodiscard]]
std::optional<bool> get_bool(std::string_view name) const;
[[nodiscard]]
static std::unique_ptr<Config> load(std::string_view name,
std::vector<std::string>& errors);
protected:
Config() = default;
Config(Config const&) = delete;
Config& operator=(Config const&) = delete;
};
} // namespace cfg
#endif // CFG_HH
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