From 2cd4346df6703b190d1497719bb1e3fa4336cd42 Mon Sep 17 00:00:00 2001
From: Jaepil Jeong <jaepil@aeca.ai>
Date: Thu, 2 May 2024 16:54:21 -0700
Subject: [PATCH] Fix compile error in Clang (#12588)

Summary:
This PR fixes the following compile errors with Clang:

```
.../rocksdb/env/fs_on_demand.cc:184:5: error: no member named 'for_each' in namespace 'std'; did you mean 'std::ranges::for_each'?
  184 |     std::for_each(rchildren.begin(), rchildren.end(), [&](std::string& name) {
      |     ^~~~~~~~~~~~~
      |     std::ranges::for_each
/opt/homebrew/opt/llvm@17/bin/../include/c++/v1/__algorithm/ranges_for_each.h:68:23: note: 'std::ranges::for_each' declared here
   68 | inline constexpr auto for_each = __for_each::__fn{};
      |                       ^
.../rocksdb/env/fs_on_demand.cc:188:10: error: no member named 'sort' in namespace 'std'
  188 |     std::sort(result->begin(), result->end());
      |     ~~~~~^
.../rocksdb/env/fs_on_demand.cc:189:10: error: no member named 'sort' in namespace 'std'
  189 |     std::sort(rchildren.begin(), rchildren.end());
      |     ~~~~~^
.../rocksdb/env/fs_on_demand.cc:193:10: error: no member named 'set_union' in namespace 'std'
  193 |     std::set_union(result->begin(), result->end(), rchildren.begin(),
      |     ~~~~~^
.../rocksdb/env/fs_on_demand.cc:221:5: error: no member named 'for_each' in namespace 'std'; did you mean 'std::ranges::for_each'?
  221 |     std::for_each(
      |     ^~~~~~~~~~~~~
      |     std::ranges::for_each
/opt/homebrew/opt/llvm@17/bin/../include/c++/v1/__algorithm/ranges_for_each.h:68:23: note: 'std::ranges::for_each' declared here
   68 | inline constexpr auto for_each = __for_each::__fn{};
      |                       ^
.../rocksdb/env/fs_on_demand.cc:226:10: error: no member named 'sort' in namespace 'std'
  226 |     std::sort(result->begin(), result->end(), file_attr_sorter);
      |     ~~~~~^
.../rocksdb/env/fs_on_demand.cc:227:10: error: no member named 'sort' in namespace 'std'
  227 |     std::sort(rchildren.begin(), rchildren.end(), file_attr_sorter);
      |     ~~~~~^
.../rocksdb/env/fs_on_demand.cc:231:10: error: no member named 'set_union' in namespace 'std'
  231 |     std::set_union(rchildren.begin(), rchildren.end(), result->begin(),
      |     ~~~~~^
8 errors generated.
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12588

Reviewed By: jaykorean

Differential Revision: D56656222

Pulled By: ajkr

fbshipit-source-id: 7e94b6250fc9edfe597a61b7622f09d6b6cd9cbd
---
 env/fs_on_demand.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/env/fs_on_demand.cc b/env/fs_on_demand.cc
index bac424264a..a2f23f5c41 100644
--- a/env/fs_on_demand.cc
+++ b/env/fs_on_demand.cc
@@ -5,6 +5,7 @@
 
 #include "env/fs_on_demand.h"
 
+#include <algorithm>
 #include <set>
 
 #include "file/filename.h"