[#BloombergLP-bdlsb-OverflowMemOutStreamBuf-overflow]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/OverflowMemOutStreamBuf.adoc[OverflowMemOutStreamBuf]::overflow
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:mrdocs:

If c is not `EOF`, adjust the underlying buffer so that the next put position is valid, put the specified `c` at this position, and increment the put position. Return `c` on success, and `traits_type::not_eof(c)` if `c` is `EOF`.

== Synopsis

Declared in `<bdlsb_overflowmemoutstreambuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
int_type
overflow(int_type c = bsl::streambuf::traits_type::eof()) override;
----


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