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_alt_name.h b/src/lib/asn1/asn1_alt_name.h
index 3b4120fc3..5ea7cfb14 100644
--- a/src/lib/asn1/asn1_alt_name.h
+++ b/src/lib/asn1/asn1_alt_name.h
@@ -19,7 +19,7 @@ namespace Botan {
 /**
 * Alternative Name
 */
-class BOTAN_DLL AlternativeName : public ASN1_Object
+class BOTAN_DLL AlternativeName final : public ASN1_Object
    {
    public:
       void encode_into(class DER_Encoder&) const override;