30 Input/output library [input.output]

30.10 File systems [filesystems]

30.10.4 Terms and definitions [fs.definitions]

30.10.4.15 path [fs.def.path]

A sequence of elements that identify the location of a file within a filesystem.
The elements are the root-name, root-directory, and an optional sequence of filenames.
The maximum number of elements in the sequence is operating system dependent.