[#CBlockIndex-nUndoPos]
= xref:CBlockIndex.adoc[CBlockIndex]::nUndoPos
:relfileprefix: ../
:mrdocs:

Byte offset within rev?????.dat where this block's undo data is stored

== Synopsis

Declared in `<chain.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[guarded_by(0x7f2e18da6688), guarded_by(0x7f2e18c0a7e8), guarded_by(0x7f2e3219cc48), guarded_by(0x7f2e34801078), guarded_by(0x7f2e331bb4d8), guarded_by(0x7f2e32e73438), guarded_by(0x7f2e42eecd88), guarded_by(0x7f2e2ad456f8), guarded_by(0x7f2e318b7f78), guarded_by(0x7f2e283eded8), guarded_by(0x7f2e29d402e8)]]
unsigned int nUndoPos = {0};
----


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