:relfileprefix: ../../../
[#E6A769DEE84D449426382CBDD487B5AFD5A877C7]

= param_view::has_value

pass:v,q[True if a value is present]


== Synopsis

Declared in header `</boost/url/param.hpp#L430[boost/url/param.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
bool has_value;
----

== Description

pass:v,q[The presence of a value is indicated by] pass:v,q[`has_value == true`.]
pass:v,q[An empty value is distinct from no value.]