:relfileprefix: ../../../
[#98BC68EC7F65E0FC7DDBB29E552A78F6A92726DE]

= Function params_ref::assign

pass:v,q[Assign elements]


== Synopsis

Declared in header `</boost/url/params_ref.hpp#L315[boost/url/params_ref.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
void
assign(initializer_list<xref:boost/urls/param_view.adoc[param_view]> init);
----

== Description

pass:v,q[This function replaces the entire] pass:v,q[contents of the view with the params]
pass:v,q[in the]
pass:v,q[initializer-list]
pass:v,q[.]
pass:v,q[All iterators are invalidated.]
[NOTE]
pass:v,q[The strings referenced by the inputs]
pass:v,q[must not come from the underlying url,]
pass:v,q[or else the behavior is undefined.]

=== Example
[,cpp]
----
url u;

u.params().assign( {{ "first", "John" }, { "last", "Doe" }} );
----

=== Complexity
pass:v,q[Linear in `init.size()`.]

=== Exception Safety
pass:v,q[Strong guarantee.]
pass:v,q[Calls to allocate may throw.]



== Return Value

* `void` 


== Parameters

|===
| Name | Type 

| *init*
| `initializer_list`

|===