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Return the host name.
template< class StringToken = string_token::return_string> StringToken::result_type host_name( StringToken&& token = {}) const;
If the host type is host_type::name
, this function returns the
name as a string. Otherwise an empty string is returned. Any percent-escapes
in the string are decoded first.
assert( [link url.ref.boost__urls__url_view_base.url_view `url_view`]( "https://www%2droot.example.com/" ).[link url.ref.boost__urls__url.host_name `host_name`]() == "www-root.example.com" );
Linear in this->host_name().size()
.
Calls to allocate may throw.
[link url.ref.boost__urls__url.host `host`] = IP-literal / IPv4address / reg-[link url.ref.boost__urls__host_type `name`] IP-literal = "[" ( IPv6address / IPvFuture ) "]" reg-[link url.ref.boost__urls__host_type `name`] = *( unreserved / pct-encoded / "-" / "." )