1450 tv_op(typval_T *tv1, typval_T *tv2, char_u *op)  in tv_op()  argument
1463 	switch (tv1->v_type)  in tv_op()
1482 		if (tv1->vval.v_blob != NULL && tv2->vval.v_blob != NULL)  in tv_op()
1484 		    blob_T  *b1 = tv1->vval.v_blob;  in tv_op()
1498 		    if (tv1->vval.v_list == NULL)  in tv_op()
1500 			tv1->vval.v_list = tv2->vval.v_list;  in tv_op()
1501 			++tv1->vval.v_list->lv_refcount;  in tv_op()
1504 			list_extend(tv1->vval.v_list, tv2->vval.v_list, NULL);  in tv_op()
1515 		    n = tv_get_number(tv1);  in tv_op()
1530 			clear_tv(tv1);  in tv_op()
1531 			tv1->v_type = VAR_FLOAT;  in tv_op()
1532 			tv1->vval.v_float = f;  in tv_op()
1547 			clear_tv(tv1);  in tv_op()
1548 			tv1->v_type = VAR_NUMBER;  in tv_op()
1549 			tv1->vval.v_number = n;  in tv_op()
1558 		    s = tv_get_string(tv1);  in tv_op()
1560 		    clear_tv(tv1);  in tv_op()
1561 		    tv1->v_type = VAR_STRING;  in tv_op()
1562 		    tv1->vval.v_string = s;  in tv_op()
1582 			case '+': tv1->vval.v_float += f; break;  in tv_op()
1583 			case '-': tv1->vval.v_float -= f; break;  in tv_op()
1584 			case '*': tv1->vval.v_float *= f; break;  in tv_op()
1585 			case '/': tv1->vval.v_float /= f; break;  in tv_op()
2802 eval_addblob(typval_T *tv1, typval_T *tv2)  in eval_addblob()  argument
2804     blob_T  *b1 = tv1->vval.v_blob;  in eval_addblob()
2816 	clear_tv(tv1);  in eval_addblob()
2817 	rettv_blob_set(tv1, b);  in eval_addblob()
2825 eval_addlist(typval_T *tv1, typval_T *tv2)  in eval_addlist()  argument
2830     if (list_concat(tv1->vval.v_list, tv2->vval.v_list, &var3) == FAIL)  in eval_addlist()
2832 	clear_tv(tv1);  in eval_addlist()
2836     clear_tv(tv1);  in eval_addlist()
2837     *tv1 = var3;  in eval_addlist()