Function gmp_mpfr_sys::mpfr::mpfr_strtofr

pub unsafe extern fn mpfr_strtofr(arg1: mpfr_ptr,
                                  arg2: *const c_char,
                                  arg3: *mut *mut c_char,
                                  arg4: c_int,
                                  arg5: mpfr_rnd_t)
                                  -> c_int