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, 9 insertions, 9 deletions

diff --git a/src/lib/compression/compression.h b/src/lib/compression/compression.h
index 0a8079de8..66aaacdc4 100644
--- a/src/lib/compression/compression.h
+++ b/src/lib/compression/compression.h
@@ -58,16 +58,16 @@ class Compression_Stream
 class BOTAN_DLL Stream_Compression : public Compressor_Transform
    {
    public:
-      void update(secure_vector<byte>& buf, size_t offset = 0) override;
+      void update(secure_vector<byte>& buf, size_t offset = 0) final override;
 
-      void flush(secure_vector<byte>& buf, size_t offset = 0) override;
+      void flush(secure_vector<byte>& buf, size_t offset = 0) final override;
 
-      void finish(secure_vector<byte>& buf, size_t offset = 0) override;
+      void finish(secure_vector<byte>& buf, size_t offset = 0) final override;
 
-      void clear() override;
+      void clear() final override;
 
    private:
-      secure_vector<byte> start_raw(const byte[], size_t) override;
+      secure_vector<byte> start_raw(const byte[], size_t) final override;
 
       void process(secure_vector<byte>& buf, size_t offset, u32bit flags);
 
@@ -80,14 +80,14 @@ class BOTAN_DLL Stream_Compression : public Compressor_Transform
 class BOTAN_DLL Stream_Decompression : public Compressor_Transform
    {
    public:
-      void update(secure_vector<byte>& buf, size_t offset = 0) override;
+      void update(secure_vector<byte>& buf, size_t offset = 0) final override;
 
-      void finish(secure_vector<byte>& buf, size_t offset = 0) override;
+      void finish(secure_vector<byte>& buf, size_t offset = 0) final override;
 
-      void clear() override;
+      void clear() final override;
 
    private:
-      secure_vector<byte> start_raw(const byte[], size_t) override;
+      secure_vector<byte> start_raw(const byte[], size_t) final override;
 
       void process(secure_vector<byte>& buf, size_t offset, u32bit flags);