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

Return the capacity of this string, i.e., the maximum length for which resizing is guaranteed not to trigger a reallocation.

== Synopsis

Declared in `<bslstl_string.h>`

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


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