[#SizeComputer]
= SizeComputer
:mrdocs:

Stream‐like object that only records how many bytes a serialization would write.

== Synopsis

Declared in `<serialize.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class SizeComputer;
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:SizeComputer/2constructor.adoc[`SizeComputer`]         [.small]#[constructor]#
| Construct a size computer with a zero byte count.
| xref:SizeComputer/seek.adoc[`seek`] 
| Pretend this many bytes are written, without specifying them.
| xref:SizeComputer/size.adoc[`size`] 
| Return the total number of bytes recorded so far.
| xref:SizeComputer/write.adoc[`write`] 
| Add the size of a byte span to the running count.
| xref:SizeComputer/operator_lshift.adoc[`operator<<`] 
| Add the serialized size of an object to the running count.
|===


== Protected Data Members

[cols="1,4"]
|===
| Name| Description
| xref:SizeComputer/m_size.adoc[`m_size`] 
| Running count of bytes that would be written.
|===


== Non-Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:WriteCompactSize-08.adoc[`WriteCompactSize`]
| Account for a CompactSize encoding when computing a serialized size.
| xref:WriteVarInt-022.adoc[`WriteVarInt`]
| Account for a VarInt encoding when computing a serialized size.
|===


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