pub unsafe extern "C" fn sd_bus_message_append_string_iovec(
m: *mut sd_bus_message,
iov: *const const_iovec,
n: c_uint,
) -> c_intpub unsafe extern "C" fn sd_bus_message_append_string_iovec(
m: *mut sd_bus_message,
iov: *const const_iovec,
n: c_uint,
) -> c_int