27 Input/output library [input.output]

27.10 File systems [filesystems]

27.10.15 Filesystem operation functions [fs.op.funcs]

27.10.15.20 Is fifo [fs.op.is_fifo]

bool is_fifo(file_status s) noexcept;

1

Returns: s.type() == file_type::fifo.

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

2

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

3

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