29 Input/output library [input.output]

29.11 File systems [filesystems]

29.11.14 Filesystem operation functions [fs.op.funcs] Remove all [fs.op.remove.all]

uintmax_t remove_all(const path& p); uintmax_t remove_all(const path& p, error_code& ec);
Effects: Recursively deletes the contents of p if it exists, then deletes file p itself, as if by POSIX remove().
A symbolic link is itself removed, rather than the file it resolves to.
— end note]
Postconditions: exists(symlink_­status(p)) is false.
Returns: The number of files removed.
The signature with argument ec returns static_­cast< uintmax_­t>(-1) if an error occurs.
Throws: As specified in [fs.err.report].