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Work around VS2017 warning for unused reference

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Summary:
For #3407
Closes https://github.com/facebook/rocksdb/pull/3425

Differential Revision: D6836900

Pulled By: gfosco

fbshipit-source-id: 7bcaf7a1beeeeabb7c05584f2745e7b4a2473497
This commit is contained in:
Fosco Marotto 2018-01-31 11:50:59 -08:00 committed by Facebook Github Bot
parent ab5ab36ac2
commit 5400800a56
1 changed files with 4 additions and 2 deletions
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6
db/column_family.cc
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@ -1060,11 +1060,13 @@ ColumnFamilySet::~ColumnFamilySet() {
while (column_family_data_.size() > 0) {
// cfd destructor will delete itself from column_family_data_
auto cfd = column_family_data_.begin()->second;
bool last_ref __attribute__((__unused__)) = cfd->Unref();
bool last_ref __attribute__((__unused__));
last_ref = cfd->Unref();
assert(last_ref);
delete cfd;
}
bool dummy_last_ref __attribute__((__unused__)) = dummy_cfd_->Unref();
bool dummy_last_ref __attribute__((__unused__));
dummy_last_ref = dummy_cfd_->Unref();
assert(dummy_last_ref);
delete dummy_cfd_;
}