[#DeriveTarget]
= DeriveTarget
:mrdocs:

Convert nBits value to target.

== Synopsis

Declared in `<pow.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::optional<arith_uint256>
DeriveTarget(
    unsigned int nBits,
    xref:uint256.adoc[uint256] pow_limit);
----

== Return Value

the proof‐of‐work target or nullopt if the nBits value is invalid (due to overflow or exceeding pow_limit)

== Parameters

[cols="1,4"]
|===
| Name| Description
| *nBits* [in]
| compact representation of the target
| *pow_limit* [in]
| PoW limit (consensus parameter)
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#