pub unsafe extern "C" fn ecp_mul_restartable( grp: *mut ecp_group, R: *mut ecp_point, m: *const mpi, P: *const ecp_point, f_rng: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: *mut c_uchar, arg3: size_t) -> c_int>, p_rng: *mut c_void, rs_ctx: *mut ecp_restart_ctx) -> c_int
