[#bsl-basic_string-0f3-length]
= xref:bsl.adoc[bsl]::xref:bsl/basic_string-0f3.adoc[basic_string<char32_t>]::length
:relfileprefix: ../../
:mrdocs:

Return the length of this string. Note that this number may differ from `CHAR_TRAITS::length(c_str())` in case the string contains null characters. Also note that a null‐terminating character added by the `c_str` method is _not_ counted in this length.

== Synopsis

Declared in `<bslstl_string.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0f3/size_type.adoc[size_type]
length() const noexcept;
----


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