Function gmp_mpfr_sys::mpfr::mpfr_set_ui_2exp

pub unsafe extern fn mpfr_set_ui_2exp(arg1: mpfr_ptr,
                                      arg2: c_ulong,
                                      arg3: mpfr_exp_t,
                                      arg4: mpfr_rnd_t)
                                      -> c_int