[#BloombergLP-bdlsb-FixedMemInput-sputbackc]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/FixedMemInput.adoc[FixedMemInput]::sputbackc
:relfileprefix: ../../../
:mrdocs:

Move the current read position back one character if the current read position is not at the beginning of the buffer and the previous position contains the specified character `c`, and return that character&period; Otherwise, return `traits&lowbar;type&colon;&colon;eof()` and do not move the current read position&period;

== Synopsis

Declared in `&lt;bdlsb&lowbar;fixedmeminput&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlsb/FixedMemInput/int_type.adoc[FixedMemInput::int&lowbar;type]
sputbackc(char c);
----


[.small]#Created with https://www.mrdocs.com[MrDocs]#
