BIGNUM static_bn, *dynamic_bn;
 
/* BIGNUMÓIɊ蓖Ăď */
BN_init(&static_bn);
 
/* VKBIGNUM蓖Ăď */
dynamic_bn = BN_new();
 
/* 2BIGNUMj */
BN_free(dynamic_bn);
BN_free(&static_bn);