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  19 Filenames   19.2 Pathnames   19.2.2 Interpreting Pathname Component Values   19.2.2.2 Special Pathname Component Values

19.2.2.2.1 NIL as a Component Value

As a pathname component value, nil represents that the component is "unfilled"; see Section 19.2.3 Merging Pathnames.

The value of any pathname component can be nil.

When constructing a pathname, nil in the host component might mean a default host rather than an actual nil in some implementations.


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