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/entropy/cryptoapi_rng/es_capi.h b/src/lib/entropy/cryptoapi_rng/es_capi.h
index 9410e05b8..a43d5a7f2 100644
--- a/src/lib/entropy/cryptoapi_rng/es_capi.h
+++ b/src/lib/entropy/cryptoapi_rng/es_capi.h
@@ -16,7 +16,7 @@ namespace Botan {
 /**
 * Win32 CAPI Entropy Source
 */
-class Win32_CAPI_EntropySource : public Entropy_Source
+class Win32_CAPI_EntropySource final : public Entropy_Source
    {
    public:
       std::string name() const override { return "win32_cryptoapi"; }