[#boost-urls-no_value]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::no_value
:relfileprefix: ../../
:mrdocs:


Constant indicating no value in a param

== Synopsis


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

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