366 	ul->ul_line = vim_strsave((char_u *)"");  in u_save_line()
373 	ul->ul_line = vim_memsave(line, ul->ul_len);  in u_save_line()
375     return ul->ul_line == NULL ? FAIL : OK;  in u_save_line()
1250     len = buf->b_u_line_ptr.ul_line == NULL  in serialize_header()
1251 				? 0L : (long)STRLEN(buf->b_u_line_ptr.ul_line);  in serialize_header()
1253     if (len > 0 && fwrite_crypt(bi, buf->b_u_line_ptr.ul_line, (size_t)len)  in serialize_header()
1431 	len = STRLEN(uep->ue_array[i].ul_line);  in serialize_uep()
1434 	if (len > 0 && fwrite_crypt(bi, uep->ue_array[i].ul_line, len) == FAIL)  in serialize_uep()
1488 	array[i].ul_line = line;  in unserialize_uep()
1674     if (buf->b_u_numhead == 0 && buf->b_u_line_ptr.ul_line == NULL)  in u_write_undo()
1868     line_ptr.ul_line = NULL;  in u_read_undo()
1990 	line_ptr.ul_line = read_string_decrypt(&bi, str_len);  in u_read_undo()
2171     vim_free(line_ptr.ul_line);  in u_read_undo()
2749 			    || memcmp(uep->ue_array[i].ul_line, p,  in u_undoredo()
2816 		    ml_replace_len((linenr_T)1, uep->ue_array[i].ul_line,  in u_undoredo()
2819 		    ml_append_flags(lnum, uep->ue_array[i].ul_line,  in u_undoredo()
2821 		vim_free(uep->ue_array[i].ul_line);  in u_undoredo()
3233 		|| memcmp(p, uep->ue_array[lnum - 1].ul_line, uep->ue_array[lnum - 1].ul_len) != 0)  in u_find_first_changed()
3444 	vim_free(uep->ue_array[--n].ul_line);  in u_freeentry()
3461     buf->b_u_line_ptr.ul_line = NULL;  in u_clearall()
3493     if (curbuf->b_u_line_ptr.ul_line != NULL)  in u_clearline()
3495 	VIM_CLEAR(curbuf->b_u_line_ptr.ul_line);  in u_clearline()
3516     if (curbuf->b_u_line_ptr.ul_line == NULL  in u_undoline()
3532     ml_replace_len(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr.ul_line,  in u_undoline()
3553     vim_free(buf->b_u_line_ptr.ul_line);  in u_blockfree()