[#bsl-basic_string-0e-find_first_not_of-02]
= xref:bsl.adoc[bsl]::xref:bsl/basic_string-0e.adoc[basic_string<wchar_t>]::find_first_not_of
:relfileprefix: ../../
:mrdocs:

`find_first_not_of` overloads

== Synopses

Declared in `<bslstl_string.h>`

Return the position of the _first_ occurrence of a character _different_ from the specified `character`, if such an occurrence can be found in this string (on or _after_ the optionally specified `position` if such a `position` is specified), and return `npos` otherwise.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0e/size_type.adoc[size_type]
xref:bsl/basic_string-0e/find_first_not_of-0f.adoc[find_first_not_of](
    wchar_t character,
    xref:bsl/basic_string-0e/size_type.adoc[size_type] position = 0) const;
----

[.small]#xref:bsl/basic_string-0e/find_first_not_of-0f.adoc[_» more..._]#

Return the position of the _first_ occurrence of a character _not_ belonging to the specified `characterString`, if such an occurrence can be found in this string (on or _after_ the optionally specified `position` if such a `position` is specified), and return `npos` otherwise.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0e/size_type.adoc[size_type]
xref:bsl/basic_string-0e/find_first_not_of-0c.adoc[find_first_not_of](
    xref:bsl/basic_string-0faf.adoc[basic_string<wchar_t>] const& characterString,
    xref:bsl/basic_string-0e/size_type.adoc[size_type] position = 0) const noexcept;
----

[.small]#xref:bsl/basic_string-0e/find_first_not_of-0c.adoc[_» more..._]#

Return the position of the first character in this string that is not found in the specified `characterString`, or `npos` if not found.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0e/size_type.adoc[size_type]
xref:bsl/basic_string-0e/find_first_not_of-01.adoc[find_first_not_of](
    wchar_t const* characterString,
    xref:bsl/basic_string-0e/size_type.adoc[size_type] position = 0) const;
----

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

Return the position of the _first_ occurrence of a character _not_ belonging to the specified `characterString`, if such an occurrence can be found in this string (on or _after_ the optionally specified `position` if such a `position` is specified), and return `npos` otherwise. The behavior is undefined unless the conversion from `STRING_VIEW_LIKE_TYPE` to `bsl::basic_string_view<CHAR_TYPE, CHAR_TRAITS>` does not throw any exception. Note that this behavior differs from the behavior implemented in the standard container, where the following noexcept specification is used: ` noexcept( std::is_nothrow_convertible_v<const T&, std::basic_string_view<CharT, Traits> >) `


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class STRING_VIEW_LIKE_TYPE>
xref:bsl/basic_string-0e/size_type.adoc[size_type]
xref:bsl/basic_string-0e/find_first_not_of-09.adoc[find_first_not_of](
    STRING_VIEW_LIKE_TYPE const& characterString,
    xref:bsl/basic_string-0e/size_type.adoc[size_type] position = 0) const noexcept(true);
----

[.small]#xref:bsl/basic_string-0e/find_first_not_of-09.adoc[_» more..._]#

Return the position of the _first_ occurrence of a character _not_ belonging to the specified `characterString` of the optionally specified `numChars` length, if such an occurrence can be found in this string (on or _after_ the optionally specified `position` if such a `position` is specified), and return `npos` otherwise. If `numChars` is not specified, `CHAR_TRAITS::length(characterString)` is used.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0e/size_type.adoc[size_type]
xref:bsl/basic_string-0e/find_first_not_of-04.adoc[find_first_not_of](
    wchar_t const* characterString,
    xref:bsl/basic_string-0e/size_type.adoc[size_type] position,
    xref:bsl/basic_string-0e/size_type.adoc[size_type] numChars) const;
----

[.small]#xref:bsl/basic_string-0e/find_first_not_of-04.adoc[_» more..._]#


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