End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

StringIO#sync

strio.sync → true

ext/stringio/stringio.c View on GitHub ↗

static VALUE
strio_get_sync(VALUE self)
{
    StringIO(self);
    return Qtrue;
}

Returns true always.

See also #sync= #string= #string #tell also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0