[#wallet-CWalletTx-m_is_cache_empty]
= xref:wallet.adoc[wallet]::xref:wallet/CWalletTx.adoc[CWalletTx]::m_is_cache_empty
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:mrdocs:

This flag is true if all m_amounts caches are empty. This is particularly useful in places where MarkDirty is conditionally called and the condition can be expensive and thus can be skipped if the flag is true. See MarkDestinationsDirty.

== Synopsis

Declared in `<wallet/transaction.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
mutable
bool m_is_cache_empty = {true};
----


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