#pragma once #include // size_t namespace nlohmann { namespace detail { /// struct to capture the start position of the current token struct position_t { /// the total number of characters read std::size_t chars_read_total = 0; /// the number of characters read in the current line std::size_t chars_read_current_line = 0; /// the number of lines read std::size_t lines_read = 0; /// conversion to size_t to preserve SAX interface constexpr operator size_t() const { return chars_read_total; } }; } // namespace detail } // namespace nlohmann