[#bsl-basic_stringbuf-2constructor-0a9]
= xref:bsl.adoc[bsl]::xref:bsl/basic_stringbuf.adoc[basic_stringbuf]::basic_stringbuf
:relfileprefix: ../../
:mrdocs:

Same as the constructor taking `const allocator_type&`.

== Synopsis

Declared in `<bslstl_stringbuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
basic_stringbuf(
    std::ios_base::openmode modeBitMask,
    xref:bsl/basic_stringbuf/allocator_type.adoc[allocator_type] const& allocator = allocator_type());
----


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