Include C++ standard library headers instead of C compatibility headers (#8068)

Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/8068

Reviewed By: zhichao-cao

Differential Revision: D27147685

Pulled By: riversand963

fbshipit-source-id: 5428b1c0142ecae17c977fba31a6d49b52983d1c

cache/cache_bench.cc

@@ -11,10 +11,10 @@ int main() {
 }
 #else
 
-#include <stdio.h>
 #include <sys/types.h>
 
 #include <cinttypes>
+#include <cstdio>
 #include <limits>
 
 #include "port/port.h"

cache/lru_cache.cc

@@ -9,8 +9,8 @@
 
 #include "cache/lru_cache.h"
 
-#include <assert.h>
+#include <cassert>
-#include <stdio.h>
+#include <cstdio>
 #include <string>
 
 #include "util/mutexlock.h"

db/c.cc

@@ -11,7 +11,11 @@
 
 #include "rocksdb/c.h"
 
-#include <stdlib.h>
+#include <cstdlib>
+#include <map>
+#include <unordered_set>
+#include <vector>
+
 #include "port/port.h"
 #include "rocksdb/cache.h"
 #include "rocksdb/compaction_filter.h"
@@ -24,6 +28,7 @@
 #include "rocksdb/memtablerep.h"
 #include "rocksdb/merge_operator.h"
 #include "rocksdb/options.h"
+#include "rocksdb/perf_context.h"
 #include "rocksdb/rate_limiter.h"
 #include "rocksdb/slice_transform.h"
 #include "rocksdb/statistics.h"
@@ -39,13 +44,8 @@
 #include "rocksdb/utilities/transaction_db.h"
 #include "rocksdb/utilities/write_batch_with_index.h"
 #include "rocksdb/write_batch.h"
-#include "rocksdb/perf_context.h"
 #include "utilities/merge_operators.h"
 
-#include <vector>
-#include <unordered_set>
-#include <map>
-
 using ROCKSDB_NAMESPACE::BackupableDBOptions;
 using ROCKSDB_NAMESPACE::BackupEngine;
 using ROCKSDB_NAMESPACE::BackupID;

db/db_iter.h

@@ -8,8 +8,9 @@
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
 #pragma once
-#include <stdint.h>
+#include <cstdint>
 #include <string>
+
 #include "db/db_impl/db_impl.h"
 #include "db/dbformat.h"
 #include "db/range_del_aggregator.h"

db/flush_scheduler.h

@@ -5,10 +5,11 @@
 
 #pragma once
 
-#include <stdint.h>
 #include <atomic>
+#include <cstdint>
 #include <mutex>
 #include <set>
+
 #include "util/autovector.h"
 
 namespace ROCKSDB_NAMESPACE {

db/log_writer.h

@@ -8,8 +8,7 @@
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 #pragma once
 
-#include <stdint.h>
+#include <cstdint>
-
 #include <memory>
 
 #include "db/log_format.h"

db/logs_with_prep_tracker.h

@@ -5,8 +5,8 @@
 //
 #pragma once
 
-#include <stdint.h>
 #include <cassert>
+#include <cstdint>
 #include <cstdlib>
 #include <mutex>
 #include <unordered_map>

db/range_tombstone_fragmenter.cc

@@ -6,12 +6,11 @@
 #include "db/range_tombstone_fragmenter.h"
 
 #include <algorithm>
+#include <cinttypes>
+#include <cstdio>
 #include <functional>
 #include <set>
 
-#include <stdio.h>
-#include <cinttypes>
-
 #include "util/autovector.h"
 #include "util/kv_map.h"
 #include "util/vector_iterator.h"

db/table_cache.h

@@ -10,9 +10,9 @@
 // Thread-safe (provides internal synchronization)
 
 #pragma once
+#include <cstdint>
 #include <string>
 #include <vector>
-#include <stdint.h>
 
 #include "db/dbformat.h"
 #include "db/range_del_aggregator.h"

db/version_set.cc

@@ -9,11 +9,10 @@
 
 #include "db/version_set.h"
 
-#include <stdio.h>
-
 #include <algorithm>
 #include <array>
 #include <cinttypes>
+#include <cstdio>
 #include <list>
 #include <map>
 #include <set>

db/write_thread.h

@@ -5,11 +5,11 @@
 
 #pragma once
 
-#include <assert.h>
-#include <stdint.h>
 #include <atomic>
+#include <cassert>
 #include <chrono>
 #include <condition_variable>
+#include <cstdint>
 #include <mutex>
 #include <type_traits>
 #include <vector>