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

== Synopsis

Declared in `<util/subprocess.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard]]
virtual
char const*
what() const noexcept override;
----

== Return Value

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====

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