int OPENSSL_sk_reserve(OPENSSL_STACK *st, int n);
void OPENSSL_sk_free(OPENSSL_STACK *);
void OPENSSL_sk_pop_free(OPENSSL_STACK *st, void (*func) (void *));
int OPENSSL_sk_reserve(OPENSSL_STACK *st, int n);
void OPENSSL_sk_free(OPENSSL_STACK *);
void OPENSSL_sk_pop_free(OPENSSL_STACK *st, void (*func) (void *));