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


Return true if a userinfo is present

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/url_view_base.hpp#L604[boost/url/url_view_base.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
has_userinfo() const noexcept;
----

== Description


This function returns true if this        contains a userinfo.


=== Example

[,cpp]
----
assert( url_view( "http://jane%2Ddoe:pass@example.com" ).has_userinfo() );
----

=== Complexity

Constant.


=== Exception Safety

Throws nothing.


=== BNF

[,cpp]
----
userinfo    = user [ ":" [ password ] ]

authority   = [ userinfo "@" ] host [ ":" port ]
----

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.1[3.2.1. User Information (rfc3986)]

Return true if a userinfo is present

This function returns true if this        contains a userinfo.


=== Example

[,cpp]
----
assert( url_view( "http://jane%2Ddoe:pass@example.com" ).has_userinfo() );
----

=== Complexity

Constant.


=== Exception Safety

Throws nothing.


=== BNF

[,cpp]
----
userinfo    = user [ ":" [ password ] ]

authority   = [ userinfo "@" ] host [ ":" port ]
----

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.1[3.2.1. User Information (rfc3986)]



== See Also


xref:boost/urls/url_view_base/has_password.adoc[has_password],            xref:boost/urls/url_view_base/encoded_password.adoc[encoded_password],            xref:boost/urls/url_view_base/encoded_user.adoc[encoded_user],            xref:boost/urls/url_view_base/encoded_userinfo.adoc[encoded_userinfo],            xref:boost/urls/url_view_base/password.adoc[password],            xref:boost/urls/url_view_base/user.adoc[user],            xref:boost/urls/url_view_base/userinfo.adoc[userinfo].



xref:boost/urls/url_view_base/has_password.adoc[has_password],            xref:boost/urls/url_view_base/encoded_password.adoc[encoded_password],            xref:boost/urls/url_view_base/encoded_user.adoc[encoded_user],            xref:boost/urls/url_view_base/encoded_userinfo.adoc[encoded_userinfo],            xref:boost/urls/url_view_base/password.adoc[password],            xref:boost/urls/url_view_base/user.adoc[user],            xref:boost/urls/url_view_base/userinfo.adoc[userinfo].






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