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db_ttl_impl.h: pass func parameter by reference

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Fix for:

[utilities/ttl/db_ttl_impl.h:209]: (performance) Function parameter
 'merge_op' should be passed by reference.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
This commit is contained in:
Danny Al-Gaaf 2014-09-26 19:35:20 +02:00
parent 8558457143
commit 873f1356a1
1 changed files with 1 additions and 1 deletions
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2
utilities/ttl/db_ttl_impl.h
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@ -206,7 +206,7 @@ class TtlCompactionFilterFactory : public CompactionFilterFactory {
class TtlMergeOperator : public MergeOperator {
public:
explicit TtlMergeOperator(const std::shared_ptr<MergeOperator> merge_op,
explicit TtlMergeOperator(const std::shared_ptr<MergeOperator>& merge_op,
Env* env)
: user_merge_op_(merge_op), env_(env) {
assert(merge_op);