[#BloombergLP-bdls-FilesystemUtil_CStringUtil-flatten-0e5] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdls.adoc[bdls]::xref:BloombergLP/bdls/FilesystemUtil_CStringUtil.adoc[FilesystemUtil_CStringUtil]::flatten :relfileprefix: ../../../ :mrdocs: Produce a compile‐time error informing the caller that the parameterized `TYPE` is not supported as the parameter for the call. == Synopsis Declared in `<bdls_filesystemutil.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template<class TYPE> static char const* flatten(TYPE const&); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#