[#boost-urls-string_token-append_to]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/string_token.adoc[string_token]::append_to
:relfileprefix: ../../../
:mrdocs:

Create a string token for appending to a plain string

== Synopsis

Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/string_token.hpp#L332[boost/url/grammar/string_token.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class Alloc = std::allocator<char>>
/* implementation-defined */
append_to(std::basic_string<char, std::char_traits<char>, Alloc>& s);
----

== Description

This function creates a xref:boost/urls/string_token/StringToken.adoc[`StringToken`] which appends to an existing plain string.

Functions using this token will append the result to the existing string and return a reference to it.

== Return Value

A string token

== Parameters

[cols=2]
|===
| Name
| Description
| *s*
| The string to append
|===


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