[#subprocess-OSError-2constructor]
= xref:subprocess.adoc[subprocess]::xref:subprocess/OSError.adoc[OSError]::OSError
:relfileprefix: ../../
:mrdocs:

Builds the error by appending the string form of a system error code to a message.

== Synopsis

Declared in `<util/subprocess.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
OSError(
    std::string const& err_msg,
    int err_code);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *err_msg*
| Description of the failed operation.
| *err_code*
| System error code (errno) whose string form is appended to the message.
|===


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