Function rfind

example/cacheHierarchy/fkYAML/node.hpp:2676–2678

@brief Retrospectively finds the beginning position of `sv` characters in this referenced character sequence. @param sv The character sequence to compare with. @param pos The offset of the search beginning position in this referenced character sequence. @return The beginning position of `sv` characters, `npos` otherwise.

    /// @param pos The offset of the search beginning position in this referenced character sequence.
    /// @return The beginning position of `sv` characters, `npos` otherwise.
    size_type rfind(basic_str_view sv, size_type pos = npos) const noexcept {
        return rfind(sv.mp_str, pos, sv.m_len);
    }

    /// @brief Retrospectively finds the beginning position of `c` character in this referenced character sequence.
    /// @param sv The character to compare with.