leveldb: Require C++11.

This CL switches the public headers to C++11 default and deleted constructors, and adds override to the relevant leveldb::EnvWrapper methods. This should be a good test for C++11 compiler support.

Once this CL settles, the rest of the codebase can be safely modernized to C++11.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=189873212

1 files changed, 4 insertions, 4 deletions

diff --git a/include/leveldb/iterator.h b/include/leveldb/iterator.h
index ff3b566..436508a 100644
--- a/include/leveldb/iterator.h
+++ b/include/leveldb/iterator.h
@@ -24,6 +24,10 @@ namespace leveldb {
 class LEVELDB_EXPORT Iterator {
  public:
   Iterator();
+
+  Iterator(const Iterator&) = delete;
+  Iterator& operator=(const Iterator&) = delete;
+
   virtual ~Iterator();
 
   // An iterator is either positioned at a key/value pair, or
@@ -84,10 +88,6 @@ class LEVELDB_EXPORT Iterator {
     Cleanup* next;
   };
   Cleanup cleanup_;
-
-  // No copying allowed
-  Iterator(const Iterator&);
-  void operator=(const Iterator&);
 };
 
 // Return an empty iterator (yields nothing).