19 Filenames   19.2 Pathnames   19.2.2 Interpreting Pathname Component Values   19.2.2.4 Restrictions on Examining Pathname Components

19.2.2.4.2 Restrictions on Examining a Pathname Device Component

Note that :wild might result from an attempt to read₁ the pathname component, even though portable programs are restricted from writing₁ such a component value; see Section 19.2.2.3 Restrictions on Wildcard Pathnames and Section 19.2.2.5 Restrictions on Constructing Pathnames.