[#bsl-basic_string-0faf-find_first_of-0c]
= xref:bsl.adoc[bsl]::xref:bsl/basic_string-0faf.adoc[basic_string]::find_first_of
:relfileprefix: ../../
:mrdocs:

`find_first_of` overloads

== Synopses

Declared in `<bslstl_string.h>`

Find the first character belonging to the specified set.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0faf/size_type.adoc[size_type]
xref:bsl/basic_string-0faf/find_first_of-052.adoc[find_first_of](
    CHAR_TYPE character,
    xref:bsl/basic_string-0faf/size_type.adoc[size_type] position = 0) const;
----

[.small]#xref:bsl/basic_string-0faf/find_first_of-052.adoc[_» more..._]#

Find the first character belonging to the specified set.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0faf/size_type.adoc[size_type]
xref:bsl/basic_string-0faf/find_first_of-01.adoc[find_first_of](
    xref:bsl/basic_string-0faf.adoc[basic_string] const& characterString,
    xref:bsl/basic_string-0faf/size_type.adoc[size_type] position = 0) const noexcept;
----

[.small]#xref:bsl/basic_string-0faf/find_first_of-01.adoc[_» more..._]#

Return the position of the first matching character.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0faf/size_type.adoc[size_type]
xref:bsl/basic_string-0faf/find_first_of-05a.adoc[find_first_of](
    CHAR_TYPE const* characterString,
    xref:bsl/basic_string-0faf/size_type.adoc[size_type] position = 0) const;
----

[.small]#xref:bsl/basic_string-0faf/find_first_of-05a.adoc[_» more..._]#

Find the first character belonging to the specified set.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class STRING_VIEW_LIKE_TYPE>
xref:bsl/basic_string-0faf/size_type.adoc[size_type]
xref:bsl/basic_string-0faf/find_first_of-0a.adoc[find_first_of](
    STRING_VIEW_LIKE_TYPE const& characterString,
    xref:bsl/basic_string-0faf/size_type.adoc[size_type] position = 0) const noexcept(true);
----

[.small]#xref:bsl/basic_string-0faf/find_first_of-0a.adoc[_» more..._]#

Return the position of the first matching character.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0faf/size_type.adoc[size_type]
xref:bsl/basic_string-0faf/find_first_of-055.adoc[find_first_of](
    CHAR_TYPE const* characterString,
    xref:bsl/basic_string-0faf/size_type.adoc[size_type] position,
    xref:bsl/basic_string-0faf/size_type.adoc[size_type] numChars) const;
----

[.small]#xref:bsl/basic_string-0faf/find_first_of-055.adoc[_» more..._]#

== Return Value

* position of the first matching character, or `npos`
* the position of the first match, or `npos`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *character*
| character value
| *position*
| starting index
| *characterString*
| pointer to characters
| *numChars*
| the number of characters in `characterString`
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#