29 Input/output library [input.output]

29.12 File systems [filesystems]

29.12.13 Filesystem operation functions [fs.op.funcs]

29.12.13.13 Equivalent [fs.op.equivalent]

bool filesystem::equivalent(const path& p1, const path& p2); bool filesystem::equivalent(const path& p1, const path& p2, error_code& ec) noexcept;
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]
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.
Throws: As specified in [fs.err.report].
Remarks: !exists(p1) || !exists(p2) is an error.