db_test.cc: pass parameter by reference

dalgaaf · dalgaaf · commit 53910ddb152f · 2014-09-30T23:30:31.000+02:00
Fix for:

[db/db_test.cc:6141]: (performance) Function parameter
 'key' should be passed by reference.

Signed-off-by: Danny Al-Gaaf &lt;danny.al-gaaf@bisect.de&gt;
diff --git a/db/db_test.cc b/db/db_test.cc
@@ -6138,7 +6138,7 @@ class WrappedBloom : public FilterPolicy {
   const FilterPolicy* filter_;
   mutable uint32_t counter_;
 
-  rocksdb::Slice convertKey(const rocksdb::Slice key) const {
+  rocksdb::Slice convertKey(const rocksdb::Slice& key) const {
     return key;
   }
 };

Original file line number	Diff line number	Diff line change
`@@ -6138,7 +6138,7 @@ class WrappedBloom : public FilterPolicy {`
`6138`	`6138`	`const FilterPolicy* filter_;`
`6139`	`6139`	`mutable uint32_t counter_;`
`6140`	`6140`
`6141`		`- rocksdb::Slice convertKey(const rocksdb::Slice key) const {`
	`6141`	`+ rocksdb::Slice convertKey(const rocksdb::Slice& key) const {`
`6142`	`6142`	`return key;`
`6143`	`6143`	`}`
`6144`	`6144`	`};`