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<concept xml:lang="en" id="GUID-E79D47D6-3FF2-5858-B092-29D39A1CA2B6"><title>How to commit streams</title><prolog><metadata><keywords/></metadata></prolog><conbody><p>Once data has been externalised to a stream, an application <i>must</i> commit a stream before disposing of the write stream object.</p> <p>This is done by calling <codeph>CommitL()</codeph> on the write stream object. The function itself is a member of the write stream interface class, <codeph>RWriteStream</codeph>.</p> <p>The following example code fragment shows this:</p> <codeblock id="GUID-CB6C4242-D85C-5C8D-BA42-B27E3178E342" xml:space="preserve">...

TSimple thesimple;

...

...              // Construct a TSimple object

...

RStoreWriteStream outstream;

TStreamId id = outstream.CreateLC(*store);

                 // Externalize the TSimple object

outstream  << thesimple;

                 // Commit changes to the stream

outstream.CommitL();

                 // Cleanup the stream object

CleanupStack::PopAndDestroy();