:relfileprefix: ../../
[#boost-urls-no_value]

= xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::no_value


Constant indicating no value in a param


== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/param.hpp#L36[boost/url/param.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
constexpr
xref:boost/urls/no_value_t.adoc[no_value_t] const no_value = {};
----