End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

StringIO#fileno

fileno

ext/stringio/stringio.c View on GitHub ↗

static VALUE
strio_nil(VALUE self)
{
    StringIO(self);
    return Qnil;
}

Returns nil. Just for compatibility to IO.

See also #fcntl #flush #external_encoding #fsync also in 4.1 · 4.0 · 3.4 · 3.3 · 3.1 · 3.0