[#subprocess-output-wr_ch_]
= xref:subprocess.adoc[subprocess]::xref:subprocess/output.adoc[output]::wr_ch_
:relfileprefix: ../../
:mrdocs:

Write end of the channel, or ‐1 if unused.

== Synopsis

Declared in `<util/subprocess.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int wr_ch_ = ‐1;
----


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