[#boost-urls-authority_view-2constructor-0e]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/authority_view.adoc[authority_view]::authority_view
:relfileprefix: ../../../
:mrdocs:


Constructor

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/authority_view.hpp#L121[boost/url/authority_view.hpp]>`

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

== Description


Default constructed authorities        refer to a string with zero length,        which is always valid. This matches        the grammar for a zero‐length host.


=== Exception Safety

Throws nothing.


=== Specification





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