### - u -

- uch() : restinio::utils::base64
- uchar_at() : restinio::impl::string_caseless_compare_details
- uint64_to_size_t() : restinio::utils::impl
- unescape() : restinio::router::easy_parser_router
- unescape_percent_encoding() : restinio::utils
- unreserved_symbol_p() : restinio::http_field_parsers::host_details
- upgrade() : restinio::websocket::basic
- use_break_signal_handling() : restinio