+int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2,
+ xdiff_emit_consume_fn fn, void *consume_callback_data,
+ xpparam_t const *xpp,
+ xdemitconf_t const *xecfg, xdemitcb_t *xecb)
+{
+ int ret;
+ struct xdiff_emit_state state;
+
+ memset(&state, 0, sizeof(state));
+ state.consume = fn;
+ state.consume_callback_data = consume_callback_data;
+ xecb->outf = xdiff_outf;
+ xecb->priv = &state;
+ strbuf_init(&state.remainder, 0);
+ ret = xdi_diff(mf1, mf2, xpp, xecfg, xecb);
+ strbuf_release(&state.remainder);
+ return ret;
+}
+