DatumGetTboxP ensure_has_T_tbox ensure_has_X_tbox ensure_same_dimensionality_tbox PG_GETARG_TBOX_P PG_RETURN_TBOX_P spanset_tbox_slice TboxPGetDatum

ensure_has_X_tbox() void ensure_has_X_tbox ( const TBox *  box ) Ensure that a temporal box has X values.