30 Input/output library [input.output]

30.10 File systems [filesystems]

30.10.34 Filesystem operation functions [fs.op.funcs] Is character file [fs.op.is_char_file]

bool is_character_file(file_status s) noexcept;

Returns: s.type() == file_­type​::​character.

bool is_character_file(const path& p); bool is_character_file(const path& p, error_code& ec) noexcept;

Returns: is_­character_­file(status(p)) or is_­character_­file(status(p, ec)), respectively.
The signature with argument ec returns false if an error occurs.

Throws: As specified in [fs.err.report].