true if the path is a FIFO, false otherwise.bool isFifo() constReturns true if the path is a FIFO (named pipe).
Platform semantics:
stat(2) and checks the file type against S_IFIFO.same way; this always returns false for API parity.
Inspired by Python's pathlib.Path.is_fifo.
true if the path is a FIFO, false otherwise.