[#bsl-basic_ostringstream-2constructor-07]
= xref:bsl.adoc[bsl]::xref:bsl/basic_ostringstream.adoc[basic_ostringstream]::basic_ostringstream
:relfileprefix: ../../
:mrdocs:

Create a `basic_ostringstream` with the specified open mode.

== Synopsis

Declared in `<bslstl_ostringstream.h>`

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

== Description

Same as the constructor taking `const allocator_type&`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *modeBitMask*
| open mode for the stream buffer
| *allocator*
| allocator used to supply memory
|===


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