Add final attribute to many classes

In some cases this can offer better optimization, via devirtualization.
And it lets the user know the class is not intended for derivation.

Some discussion in GH #402

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/asn1/asn1_oid.h b/src/lib/asn1/asn1_oid.h
index 5c3053ee0..6fbd876ec 100644
--- a/src/lib/asn1/asn1_oid.h
+++ b/src/lib/asn1/asn1_oid.h
@@ -17,7 +17,7 @@ namespace Botan {
 /**
 * This class represents ASN.1 object identifiers.
 */
-class BOTAN_DLL OID : public ASN1_Object
+class BOTAN_DLL OID final : public ASN1_Object
    {
    public:
       void encode_into(class DER_Encoder&) const override;