[#subprocess-Buffer-length]
= xref:subprocess.adoc[subprocess]::xref:subprocess/Buffer.adoc[Buffer]::length
:relfileprefix: ../../
:mrdocs:

Number of valid bytes currently stored in buf.

== Synopsis

Declared in `<util/subprocess.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
size_t length = 0;
----


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