1 files changed, 5 insertions, 0 deletions
diff --git a/src/hash/hash.h b/src/hash/hash.h
index 7cdfc6712..4f753f765 100644
--- a/src/hash/hash.h
+++ b/src/hash/hash.h
@@ -40,8 +40,13 @@ class BOTAN_DLL HashFunction : public BufferedComputation
       */
       virtual void clear() = 0;
 
+      /**
+      * @param hash_len the output length
+      * @param block_len the internal block size (if applicable)
+      */
       HashFunction(u32bit hash_len, u32bit block_len = 0) :
          BufferedComputation(hash_len), HASH_BLOCK_SIZE(block_len) {}
+
       virtual ~HashFunction() {}
    private:
       HashFunction& operator=(const HashFunction&);