31 Input/output library [input.output]

31.12 File systems [filesystems]

31.12.13 Filesystem operation functions [fs.op.funcs]

31.12.13.13 Equivalent [fs.op.equivalent]

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bool filesystem::equivalent(const path& p1, const path& p2); bool filesystem::equivalent(const path& p1, const path& p2, error_code& ec) noexcept;
1
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Two paths are considered to resolve to the same file system entity if two candidate entities reside on the same device at the same location.
[Note 1: 
On POSIX platforms, this is determined as if by the values of the POSIX stat class, obtained as if by stat() for the two paths, having equal st_dev values and equal st_ino values.
— end note]
2
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Returns: true, if p1 and p2 resolve to the same file system entity, otherwise false.
The signature with argument ec returns false if an error occurs.
3
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Throws: As specified in [fs.err.report].
4
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Remarks: !exists(p1) || !exists(p2) is an error.