[#BloombergLP-bslx-TestOutStream-invalidate] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslx.adoc[bslx]::xref:BloombergLP/bslx/TestOutStream.adoc[TestOutStream]::invalidate :relfileprefix: ../../../ :mrdocs: Put this output stream in an invalid state. This function has no effect if this stream is already invalid. == Synopsis Declared in `<bslx_testoutstream.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- void invalidate(); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#