doc: Mention the update of der data pointers in d2i/i2d

Fixes #15958

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15973)

diff --git a/doc/man3/d2i_PrivateKey.pod b/doc/man3/d2i_PrivateKey.pod
index 4e3f20f8b324b716100720ec324f92035b4f17c4..31732e89c8ca35661340b113c9fad020592e29ad 100644 (file)
--- a/doc/man3/d2i_PrivateKey.pod
+++ b/doc/man3/d2i_PrivateKey.pod
@@ -42,6 +42,10 @@ These functions are similar to the d2i_X509() functions; see L<d2i_X509(3)>.
 
 =head1 NOTES
 
+All the functions that operate on data in memory update the data pointer I<*pp>
+after a successful operation, just like the other d2i and i2d functions;
+see L<d2i_X509(3)>.
+
 All these functions use DER format and unencrypted keys. Applications wishing
 to encrypt or decrypt private keys should use other functions such as
 d2i_PKCS8PrivateKey() instead.