Class SettingsSpan

src/util/settings.h:83–96

Accessor for list of settings that skips negated values when iterated over. The last boolean `false` value in the list and all earlier values are considered negated.

//! The last boolean `false` value in the list and all earlier values are
//! considered negated.
struct SettingsSpan {
    explicit SettingsSpan() = default;
    explicit SettingsSpan(const SettingsValue& value) noexcept : SettingsSpan(&value, 1) {}
    explicit SettingsSpan(const SettingsValue* data, size_t size) noexcept : data(data), size(size) {}
    explicit SettingsSpan(const std::vector<SettingsValue>& vec) noexcept;
    const SettingsValue* begin() const; //!< Pointer to first non-negated value.
    const SettingsValue* end() const;   //!< Pointer to end of values.
    bool empty() const;                 //!< True if there are any non-negated values.
    bool last_negated() const;          //!< True if the last value is negated.
    size_t negated() const;             //!< Number of negated values.

    const SettingsValue* data = nullptr;
    size_t size = 0;
};

//! Map lookup helper.
template <typename Map, typename Key>