DEFINE_STACK_OF, DEFINE_STACK_OF_CONST, DEFINE_SPECIAL_STACK_OF,
DEFINE_SPECIAL_STACK_OF_CONST,
-OPENSSL_sk_deep_copy, OPENSSL_sk_delete, OPENSSL_sk_delete_ptr,
-OPENSSL_sk_dup, OPENSSL_sk_find, OPENSSL_sk_find_ex,
-OPENSSL_sk_free, OPENSSL_sk_insert, OPENSSL_sk_is_sorted,
-OPENSSL_sk_new, OPENSSL_sk_new_null, OPENSSL_sk_num, OPENSSL_sk_pop,
-OPENSSL_sk_pop_free, OPENSSL_sk_push, OPENSSL_sk_reserve, OPENSSL_sk_set,
-OPENSSL_sk_set_cmp_func, OPENSSL_sk_shift, OPENSSL_sk_sort,
-OPENSSL_sk_unshift, OPENSSL_sk_value, OPENSSL_sk_zero,
sk_TYPE_num, sk_TYPE_value, sk_TYPE_new, sk_TYPE_new_null,
sk_TYPE_reserve, sk_TYPE_free, sk_TYPE_zero, sk_TYPE_delete,
sk_TYPE_delete_ptr, sk_TYPE_push, sk_TYPE_unshift, sk_TYPE_pop,
STACK_OF(), DEFINE_STACK_OF(), DEFINE_STACK_OF_CONST(), and
DEFINE_SPECIAL_STACK_OF() are implemented as macros.
+The underlying utility B<OPENSSL_sk_> API should not be used directly.
+It defines these functions: OPENSSL_sk_deep_copy(),
+OPENSSL_sk_delete(), OPENSSL_sk_delete_ptr(), OPENSSL_sk_dup(),
+OPENSSL_sk_find(), OPENSSL_sk_find_ex(), OPENSSL_sk_free(),
+OPENSSL_sk_insert(), OPENSSL_sk_is_sorted(), OPENSSL_sk_new(),
+OPENSSL_sk_new_null(), OPENSSL_sk_num(), OPENSSL_sk_pop(),
+OPENSSL_sk_pop_free(), OPENSSL_sk_push(), OPENSSL_sk_reserve(),
+OPENSSL_sk_set(), OPENSSL_sk_set_cmp_func(), OPENSSL_sk_shift(),
+OPENSSL_sk_sort(), OPENSSL_sk_unshift(), OPENSSL_sk_value(),
+OPENSSL_sk_zero().
+
=head1 RETURN VALUES
sk_TYPE_num() returns the number of elements in the stack or B<-1> if the