[#kernel-BlockTreeDB-WriteFlag]
= xref:kernel.adoc[kernel]::xref:kernel/BlockTreeDB.adoc[BlockTreeDB]::WriteFlag
:relfileprefix: ../../
:mrdocs:

Persist a named boolean flag.

== Synopsis

Declared in `<node/blockstorage.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
WriteFlag(
    std::string const& name,
    bool fValue);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *name*
| The flag name.
| *fValue*
| The flag value to store.
|===


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