[#BloombergLP-bdlb-StringViewUtil-findFirstNotOf]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/StringViewUtil.adoc[StringViewUtil]::findFirstNotOf
:relfileprefix: ../../../
:mrdocs:

Return the position of the first character not in `characters`.

== Synopsis

Declared in `<bdlb_stringviewutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
xref:BloombergLP/bdlb/StringViewUtil/size_type.adoc[size_type]
findFirstNotOf(
    std::string_view const& string,
    std::string_view const& characters,
    xref:BloombergLP/bdlb/StringViewUtil/size_type.adoc[size_type] position = 0);
----

== Description

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

== Return Value

position of the first non‐match, or `k_NPOS`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *string*
| string view to search
| *characters*
| set of characters to exclude
| *position*
| starting index for the search (default 0)
|===


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