[#subprocess-error-2constructor-0c]
= xref:subprocess.adoc[subprocess]::xref:subprocess/error.adoc[error]::error
:relfileprefix: ../../
:mrdocs:

Opens a file for appending and uses it as the child's error channel.

== Synopsis

Declared in `<util/subprocess.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
error(char const* filename);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *filename*
| Path of the file to create or append to.
|===


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