[#bsl-basic_string-0e-2constructor-0ae]
= xref:bsl.adoc[bsl]::xref:bsl/basic_string-0e.adoc[basic_string<wchar_t>]::basic_string
:relfileprefix: ../../
:mrdocs:

Create an empty string. Optionally specify the `basicAllocator` used to supply memory. If `basicAllocator` is not specified, a default‐constructed allocator is used.

== Synopsis

Declared in `<bslstl_string.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
basic_string(xref:bsl/allocator-0df.adoc[allocator<wchar_t>] const& basicAllocator) noexcept;
----


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