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


Return an iterator to the beginning

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/params_encoded_base.hpp#L242[boost/url/params_encoded_base.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:boost/urls/params_encoded_base/iterator.adoc[iterator]
begin() const noexcept;
----

== Description



=== Complexity

Linear in the size of the first param.


=== Exception Safety

Throws nothing.





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