31 Input/output library [input.output]

31.12 File systems [filesystems]

31.12.8 Enumerations [fs.enum]

31.12.8.5 Enum class perm_options [fs.enum.perm.opts]

Table 152 — Enum class perm_options [tab:fs.enum.perm.opts]
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Name
Meaning
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permissions shall replace the file's permission bits with perm
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permissions shall replace the file's permission bits with the bitwise or of perm and the file's current permission bits.
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permissions shall replace the file's permission bits with the bitwise and of the complement of perm and the file's current permission bits.
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permissions shall change the permissions of a symbolic link itself rather than the permissions of the file the link resolves to.