[#btck_block_get_hash]
= btck_block_get_hash
:mrdocs:

Calculate and return the hash of a block.

== Synopsis

Declared in `<kernel/bitcoinkernel.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard, __nonnull__]]
xref:btck_BlockHash-07.adoc[btck_BlockHash]*
btck_block_get_hash(xref:btck_Block-04.adoc[btck_Block] const* block);
----

== Return Value

The block hash.

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

[cols="1,4"]
|===
| Name| Description
| *block* [in]
| Non‐null.
|===


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