SET_BUF_BEGV     2972 src/editfns.c    SET_BUF_BEGV (current_buffer, s);
SET_BUF_BEGV     3722 src/xdisp.c      SET_BUF_BEGV (current_buffer, XFIXNUM (point_min));
SET_BUF_BEGV     3734 src/xdisp.c    	SET_BUF_BEGV (current_buffer, BV);				\