[#CMessageHeader-MESSAGE_SIZE_OFFSET]
= xref:CMessageHeader.adoc[CMessageHeader]::MESSAGE_SIZE_OFFSET
:relfileprefix: ../
:mrdocs:

Byte offset of the payload size field within the header.

== Synopsis

Declared in `<protocol.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
inline constexpr static
size_t MESSAGE_SIZE_OFFSET = std::tuple_size_v<MessageStartChars> + MESSAGE_TYPE_SIZE;
----


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