[#boost-urls-grammar-find_if]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/grammar.adoc[grammar]::find_if
:relfileprefix: ../../../
:mrdocs:


Find the first character in the string that is in the set.

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/charset.hpp#L144[boost/url/grammar/charset.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<xref:boost/urls/grammar/CharSet.adoc[CharSet] CS>
char const*
find_if(
    char const const* first,
    char const const* last,
    CS const& cs) noexcept;
----

== Description



=== Exception Safety

Throws nothing.



== Return Value


A pointer to the found character,    otherwise the value `last`.



== Parameters


|===
| Name | Description

| *first*
| A pointer to the first character    in the string to search.


| *last*
| A pointer to one past the last    character in the string to search.


| *cs*
| The character set to use.


|===

== See Also


xref:boost/urls/grammar/find_if_not.adoc[find_if_not].






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