[#GetSizeOfCompactSize]
= GetSizeOfCompactSize
:mrdocs:

Compact Size size < 253 ‐‐ 1 byte size <= USHRT_MAX ‐‐ 3 bytes (253 + 2 bytes) size <= UINT_MAX ‐‐ 5 bytes (254 + 4 bytes) size > UINT_MAX ‐‐ 9 bytes (255 + 8 bytes)

== Synopsis

Declared in `<serialize.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
unsigned int
GetSizeOfCompactSize(uint64_t nSize);
----

== Return Value

The number of bytes its CompactSize encoding occupies.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *nSize*
| The value that would be encoded as a CompactSize.
|===


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