[#boost-urls-segments_ref-assign-08]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/segments_ref.adoc[segments&lowbar;ref]::assign
:relfileprefix: ../../../
:mrdocs:


Assign segments

== Synopsis


Declared in `&lt;https://www.github.com/boostorg/url/blob/develop/include/boost/url/segments_ref.hpp#L307[boost&sol;url&sol;segments&lowbar;ref&period;hpp]&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
assign(std::initializer&lowbar;list&lt;core::string&lowbar;view&gt; init);
----

== Description


The existing contents are replaced        by a copy of the contents of the        initializer list&period;        Reserved characters in the list are        automatically escaped&period;

All iterators are invalidated&period;

[NOTE]
None of the character buffers referenced        by `init` may overlap the character buffer        of the underlying url, or else the behavior        is undefined&period;


=== Example

[,cpp]
----
url u;

u.segments().assign( { "path", "to", "file.txt" } );
----

=== Complexity

Linear in `init&period;size() &plus; this&hyphen;&gt;url()&period;encoded&lowbar;query()&period;size() &plus; this&hyphen;&gt;url()&period;encoded&lowbar;fragment()&period;size()`&period;


=== Exception Safety

Strong guarantee&period;        Calls to allocate may throw&period;



== Parameters


|===
| Name | Description

| *init*
| The list of segments to assign&period;


|===



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