[#ChainstateManager-m_best_invalid]
= xref:ChainstateManager.adoc[ChainstateManager]::m_best_invalid
:relfileprefix: ../
:mrdocs:

Best known invalid block, tracked to detect a longer invalid chain than the valid one.

== Synopsis

Declared in `<validation.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[guarded_by(0x7f2e1bc169b8), guarded_by(0x7f2e146b4d08), guarded_by(0x7f2e298fa0d8), guarded_by(0x7f2e360b7838)]]
xref:CBlockIndex.adoc[CBlockIndex]* m_best_invalid = {nullptr};
----


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