[#Chainstate-NeedsRedownload]
= xref:Chainstate.adoc[Chainstate]::NeedsRedownload
:relfileprefix: ../
:mrdocs:

Whether the chain state needs to be redownloaded due to lack of witness data.

== Synopsis

Declared in `<validation.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard, requires_capability(0x7fb95fa388e8), requires_capability(0x7fb96ac5f848), requires_capability(0x7fb96e9d6068), requires_capability(0x7fb98748b6d8)]]
bool
NeedsRedownload() const;
----

== Return Value

true if the chain state needs to be redownloaded.

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====

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