prep_io 7357 io.c return prep_io(fd, rb_io_oflags_fmode(oflags), klass, path); prep_io 7364 io.c VALUE io = prep_io(fileno(f), fmode|FMODE_PREP|DEFAULT_TEXTMODE, klass, path); prep_io 8044 io.c write_io = prep_io(fw, FMODE_WRITABLE, rb_cFile, fn); prep_io 8052 io.c ARGF.current_file = prep_io(fr, fmode, rb_cFile, fn);