An inheritance is deemed accepted:
(1) If the heirs sells, donates, or assigns his right to a stranger, or to his co-heirs, or to any of them;
(2) If the heir renounces the same, even though gratuitously, for the benefit of one or more of his co-heirs;
(3) If he renounces it for a price in favor of all his co-heirs indiscriminately; but if this renunciation should be gratuitous, and the co-heirs in whose favor it is made are those upon whom the portion renounced should devolve by virtue of accretion, the inheritance shall not be deemed as accepted. (1000)