From 9db4b20c868341abe2a9fe52b652f7d9447ed406 Mon Sep 17 00:00:00 2001
From: Philip Hyunsu Cho <chohyu01@cs.washington.edu>
Date: Tue, 9 Jun 2020 00:43:06 -0700
Subject: [PATCH] Revert "[CI] Reorder #include to comply with cpplint 1.5.0
 (#622)" (#624)

This reverts commit 88abbf9857f9a1ec45a189e9b2bb87bdc196c013.
---
 include/dmlc/filesystem.h            |  4 ++--
 include/dmlc/logging.h               |  6 +++---
 include/dmlc/lua.h                   | 12 ++++++------
 include/dmlc/thread_group.h          |  6 +++---
 src/data.cc                          |  4 ++--
 src/data/csv_parser.h                | 10 +++++-----
 src/data/disk_row_iter.h             |  4 ++--
 src/data/libfm_parser.h              |  6 +++---
 src/data/libsvm_parser.h             |  6 +++---
 src/data/parser.h                    |  2 +-
 src/data/row_block.h                 |  8 ++++----
 src/data/text_parser.h               |  8 ++++----
 src/io.cc                            |  2 +-
 src/io/azure_filesys.h               |  2 +-
 src/io/cached_input_split.h          |  4 ++--
 src/io/filesys.cc                    |  2 +-
 src/io/hdfs_filesys.cc               |  2 +-
 src/io/hdfs_filesys.h                |  6 +++---
 src/io/indexed_recordio_split.cc     |  4 ++--
 src/io/indexed_recordio_split.h      |  8 ++++----
 src/io/input_split_base.cc           |  2 +-
 src/io/input_split_base.h            |  8 ++++----
 src/io/line_split.cc                 |  2 +-
 src/io/line_split.h                  |  2 +-
 src/io/local_filesys.cc              |  6 +++---
 src/io/local_filesys.h               |  2 +-
 src/io/recordio_split.cc             |  2 +-
 src/io/recordio_split.h              |  6 +++---
 src/io/s3_filesys.cc                 | 18 ++++++++----------
 src/io/s3_filesys.h                  |  2 +-
 src/io/single_file_split.h           |  8 ++++----
 src/io/single_threaded_input_split.h |  2 +-
 src/io/threaded_input_split.h        |  2 +-
 src/io/uri_spec.h                    |  2 +-
 src/recordio.cc                      |  2 +-
 35 files changed, 85 insertions(+), 87 deletions(-)

diff --git a/include/dmlc/filesystem.h b/include/dmlc/filesystem.h
index d53194072b..64d1073041 100644
--- a/include/dmlc/filesystem.h
+++ b/include/dmlc/filesystem.h
@@ -7,12 +7,12 @@
 #ifndef DMLC_FILESYSTEM_H_
 #define DMLC_FILESYSTEM_H_
 
+#include <dmlc/logging.h>
+#include <dmlc/io.h>
 #include <algorithm>
 #include <string>
 #include <vector>
 #include <random>
-#include <dmlc/logging.h>
-#include <dmlc/io.h>
 
 /* platform specific headers */
 #ifdef _WIN32
diff --git a/include/dmlc/logging.h b/include/dmlc/logging.h
index a791ac4145..3ff42ae3b1 100644
--- a/include/dmlc/logging.h
+++ b/include/dmlc/logging.h
@@ -7,17 +7,17 @@
  */
 #ifndef DMLC_LOGGING_H_
 #define DMLC_LOGGING_H_
-#include <sstream>
+#include <cstdio>
+#include <cstdlib>
 #include <string>
 #include <vector>
 #include <stdexcept>
 #include <memory>
-#include <cstdio>
-#include <cstdlib>
 #include "./base.h"
 
 #if DMLC_LOG_STACK_TRACE
 #include <cxxabi.h>
+#include <sstream>
 #include DMLC_EXECINFO_H
 #endif
 
diff --git a/include/dmlc/lua.h b/include/dmlc/lua.h
index 32a549e0b2..13aa7b73d2 100644
--- a/include/dmlc/lua.h
+++ b/include/dmlc/lua.h
@@ -29,6 +29,12 @@
 #ifndef DMLC_LUA_H_
 #define DMLC_LUA_H_
 
+extern "C" {
+#include <lua.h>
+#include <luaT.h>
+#include <lualib.h>
+}
+
 #include <string>
 #include <stdexcept>
 #include <tuple>
@@ -40,12 +46,6 @@
 #include <unordered_map>
 #include <type_traits>
 
-extern "C" {
-#include <lua.h>
-#include <luaT.h>
-#include <lualib.h>
-}
-
 #include "./base.h"
 #include "./logging.h"
 #include "./thread_local.h"
diff --git a/include/dmlc/thread_group.h b/include/dmlc/thread_group.h
index 2cca804b59..ced3ae0acd 100644
--- a/include/dmlc/thread_group.h
+++ b/include/dmlc/thread_group.h
@@ -6,6 +6,9 @@
 #ifndef DMLC_THREAD_GROUP_H_
 #define DMLC_THREAD_GROUP_H_
 
+#include <dmlc/concurrentqueue.h>
+#include <dmlc/blockingconcurrentqueue.h>
+#include <dmlc/logging.h>
 #include <string>
 #include <mutex>
 #include <utility>
@@ -14,9 +17,6 @@
 #include <thread>
 #include <unordered_set>
 #include <unordered_map>
-#include <dmlc/concurrentqueue.h>
-#include <dmlc/blockingconcurrentqueue.h>
-#include <dmlc/logging.h>
 #if defined(DMLC_USE_CXX14) || __cplusplus > 201103L  /* C++14 */
 #include <shared_mutex>
 #endif
diff --git a/src/data.cc b/src/data.cc
index c18f1c4130..ed619cbad9 100644
--- a/src/data.cc
+++ b/src/data.cc
@@ -1,11 +1,11 @@
 // Copyright by Contributors
-#include <string>
-#include <cstring>
 #include <dmlc/base.h>
 #include <dmlc/io.h>
 #include <dmlc/logging.h>
 #include <dmlc/data.h>
 #include <dmlc/registry.h>
+#include <cstring>
+#include <string>
 #include "io/uri_spec.h"
 #include "data/parser.h"
 #include "data/basic_row_iter.h"
diff --git a/src/data/csv_parser.h b/src/data/csv_parser.h
index 78934344b0..9b945a657f 100644
--- a/src/data/csv_parser.h
+++ b/src/data/csv_parser.h
@@ -7,14 +7,14 @@
 #ifndef DMLC_DATA_CSV_PARSER_H_
 #define DMLC_DATA_CSV_PARSER_H_
 
-#include <map>
-#include <string>
-#include <limits>
-#include <cmath>
-#include <cstring>
 #include <dmlc/data.h>
 #include <dmlc/strtonum.h>
 #include <dmlc/parameter.h>
+#include <cmath>
+#include <cstring>
+#include <map>
+#include <string>
+#include <limits>
 #include "./row_block.h"
 #include "./text_parser.h"
 
diff --git a/src/data/disk_row_iter.h b/src/data/disk_row_iter.h
index f41d128009..718d62a62f 100644
--- a/src/data/disk_row_iter.h
+++ b/src/data/disk_row_iter.h
@@ -8,13 +8,13 @@
 #ifndef DMLC_DATA_DISK_ROW_ITER_H_
 #define DMLC_DATA_DISK_ROW_ITER_H_
 
-#include <algorithm>
-#include <string>
 #include <dmlc/io.h>
 #include <dmlc/logging.h>
 #include <dmlc/data.h>
 #include <dmlc/timer.h>
 #include <dmlc/threadediter.h>
+#include <algorithm>
+#include <string>
 #include "./row_block.h"
 #include "./libsvm_parser.h"
 
diff --git a/src/data/libfm_parser.h b/src/data/libfm_parser.h
index 1939106dd0..a897bd5511 100644
--- a/src/data/libfm_parser.h
+++ b/src/data/libfm_parser.h
@@ -7,14 +7,14 @@
 #ifndef DMLC_DATA_LIBFM_PARSER_H_
 #define DMLC_DATA_LIBFM_PARSER_H_
 
+#include <dmlc/data.h>
+#include <dmlc/strtonum.h>
+#include <dmlc/parameter.h>
 #include <map>
 #include <string>
 #include <limits>
 #include <algorithm>
 #include <cstring>
-#include <dmlc/data.h>
-#include <dmlc/strtonum.h>
-#include <dmlc/parameter.h>
 #include "./row_block.h"
 #include "./text_parser.h"
 
diff --git a/src/data/libsvm_parser.h b/src/data/libsvm_parser.h
index 57cb4b22af..cc9d3ed267 100644
--- a/src/data/libsvm_parser.h
+++ b/src/data/libsvm_parser.h
@@ -7,14 +7,14 @@
 #ifndef DMLC_DATA_LIBSVM_PARSER_H_
 #define DMLC_DATA_LIBSVM_PARSER_H_
 
+#include <dmlc/data.h>
+#include <dmlc/strtonum.h>
+#include <dmlc/parameter.h>
 #include <map>
 #include <string>
 #include <limits>
 #include <algorithm>
 #include <cstring>
-#include <dmlc/data.h>
-#include <dmlc/strtonum.h>
-#include <dmlc/parameter.h>
 #include "./row_block.h"
 #include "./text_parser.h"
 
diff --git a/src/data/parser.h b/src/data/parser.h
index 5a9b94bbd5..1701c24619 100644
--- a/src/data/parser.h
+++ b/src/data/parser.h
@@ -7,10 +7,10 @@
 #ifndef DMLC_DATA_PARSER_H_
 #define DMLC_DATA_PARSER_H_
 
-#include <vector>
 #include <dmlc/base.h>
 #include <dmlc/logging.h>
 #include <dmlc/threadediter.h>
+#include <vector>
 #include "./row_block.h"
 
 namespace dmlc {
diff --git a/src/data/row_block.h b/src/data/row_block.h
index 4bea0090b7..7e0e32828c 100644
--- a/src/data/row_block.h
+++ b/src/data/row_block.h
@@ -8,13 +8,13 @@
 #ifndef DMLC_DATA_ROW_BLOCK_H_
 #define DMLC_DATA_ROW_BLOCK_H_
 
-#include <vector>
-#include <limits>
-#include <algorithm>
-#include <cstring>
 #include <dmlc/io.h>
 #include <dmlc/logging.h>
 #include <dmlc/data.h>
+#include <cstring>
+#include <vector>
+#include <limits>
+#include <algorithm>
 
 namespace dmlc {
 namespace data {
diff --git a/src/data/text_parser.h b/src/data/text_parser.h
index a3b482f559..97524b7f37 100644
--- a/src/data/text_parser.h
+++ b/src/data/text_parser.h
@@ -7,14 +7,14 @@
 #ifndef DMLC_DATA_TEXT_PARSER_H_
 #define DMLC_DATA_TEXT_PARSER_H_
 
-#include <algorithm>
+#include <dmlc/data.h>
+#include <dmlc/omp.h>
+#include <dmlc/common.h>
 #include <thread>
 #include <mutex>
 #include <vector>
 #include <cstring>
-#include <dmlc/data.h>
-#include <dmlc/omp.h>
-#include <dmlc/common.h>
+#include <algorithm>
 #include "./row_block.h"
 #include "./parser.h"
 
diff --git a/src/io.cc b/src/io.cc
index 3f11683418..732f304abd 100644
--- a/src/io.cc
+++ b/src/io.cc
@@ -1,9 +1,9 @@
 // Copyright by Contributors
 
-#include <cstring>
 #include <dmlc/base.h>
 #include <dmlc/io.h>
 #include <dmlc/logging.h>
+#include <cstring>
 #include "io/uri_spec.h"
 #include "io/line_split.h"
 #include "io/recordio_split.h"
diff --git a/src/io/azure_filesys.h b/src/io/azure_filesys.h
index beff9d2d40..8f22d8930f 100644
--- a/src/io/azure_filesys.h
+++ b/src/io/azure_filesys.h
@@ -7,9 +7,9 @@
 #ifndef DMLC_IO_AZURE_FILESYS_H_
 #define DMLC_IO_AZURE_FILESYS_H_
 
+#include <dmlc/filesystem.h>
 #include <vector>
 #include <string>
-#include <dmlc/filesystem.h>
 
 namespace dmlc {
 namespace io {
diff --git a/src/io/cached_input_split.h b/src/io/cached_input_split.h
index e245b7a05a..2a264ef637 100644
--- a/src/io/cached_input_split.h
+++ b/src/io/cached_input_split.h
@@ -9,13 +9,13 @@
 #ifndef DMLC_IO_CACHED_INPUT_SPLIT_H_
 #define DMLC_IO_CACHED_INPUT_SPLIT_H_
 
-#include <string>
-#include <algorithm>
 #include <dmlc/base.h>
 // this code depends on c++11
 
 #if DMLC_ENABLE_STD_THREAD
 #include <dmlc/threadediter.h>
+#include <string>
+#include <algorithm>
 #include "./input_split_base.h"
 
 namespace dmlc {
diff --git a/src/io/filesys.cc b/src/io/filesys.cc
index bc8c9b1263..086bc8d898 100644
--- a/src/io/filesys.cc
+++ b/src/io/filesys.cc
@@ -1,7 +1,7 @@
 // Copyright by Contributors
 
-#include <queue>
 #include <dmlc/filesystem.h>
+#include <queue>
 
 namespace dmlc {
 namespace io {
diff --git a/src/io/hdfs_filesys.cc b/src/io/hdfs_filesys.cc
index 5cd9bf8397..6d22750731 100644
--- a/src/io/hdfs_filesys.cc
+++ b/src/io/hdfs_filesys.cc
@@ -1,7 +1,7 @@
 // Copyright by Contributors
+#include <dmlc/logging.h>
 #include <algorithm>
 #include <limits>
-#include <dmlc/logging.h>
 #include "./hdfs_filesys.h"
 
 namespace dmlc {
diff --git a/src/io/hdfs_filesys.h b/src/io/hdfs_filesys.h
index 77d7661adf..ef057b0d19 100644
--- a/src/io/hdfs_filesys.h
+++ b/src/io/hdfs_filesys.h
@@ -6,14 +6,14 @@
  */
 #ifndef DMLC_IO_HDFS_FILESYS_H_
 #define DMLC_IO_HDFS_FILESYS_H_
-#include <vector>
-#include <string>
-
 extern "C" {
 #include <hdfs.h>
 }
 #include <dmlc/filesystem.h>
 
+#include <vector>
+#include <string>
+
 namespace dmlc {
 namespace io {
 /*! \brief HDFS file system */
diff --git a/src/io/indexed_recordio_split.cc b/src/io/indexed_recordio_split.cc
index 0896c85ca5..8a32ad8648 100644
--- a/src/io/indexed_recordio_split.cc
+++ b/src/io/indexed_recordio_split.cc
@@ -1,9 +1,9 @@
 // Copyright by Contributors
-#include <algorithm>
-#include <fstream>
 #include <dmlc/recordio.h>
 #include <dmlc/logging.h>
 #include <dmlc/io.h>
+#include <algorithm>
+#include <fstream>
 #include "./indexed_recordio_split.h"
 
 namespace dmlc {
diff --git a/src/io/indexed_recordio_split.h b/src/io/indexed_recordio_split.h
index 3e0a8b29a9..8c34ed7940 100644
--- a/src/io/indexed_recordio_split.h
+++ b/src/io/indexed_recordio_split.h
@@ -6,14 +6,14 @@
 #ifndef DMLC_IO_INDEXED_RECORDIO_SPLIT_H_
 #define DMLC_IO_INDEXED_RECORDIO_SPLIT_H_
 
+#include <dmlc/io.h>
+#include <dmlc/recordio.h>
 #include <vector>
+#include <cstdio>
 #include <string>
+#include <cstring>
 #include <utility>
 #include <random>
-#include <cstdio>
-#include <cstring>
-#include <dmlc/io.h>
-#include <dmlc/recordio.h>
 #include "./input_split_base.h"
 
 namespace dmlc {
diff --git a/src/io/input_split_base.cc b/src/io/input_split_base.cc
index 1f3b281ad3..a82663340f 100644
--- a/src/io/input_split_base.cc
+++ b/src/io/input_split_base.cc
@@ -1,7 +1,7 @@
 // Copyright by Contributors
-#include <algorithm>
 #include <dmlc/logging.h>
 #include <dmlc/common.h>
+#include <algorithm>
 #include "./line_split.h"
 
 #if DMLC_USE_REGEX
diff --git a/src/io/input_split_base.h b/src/io/input_split_base.h
index aad1dd6e15..366278864d 100644
--- a/src/io/input_split_base.h
+++ b/src/io/input_split_base.h
@@ -7,13 +7,13 @@
 #ifndef DMLC_IO_INPUT_SPLIT_BASE_H_
 #define DMLC_IO_INPUT_SPLIT_BASE_H_
 
+#include <dmlc/io.h>
+#include <dmlc/filesystem.h>
+#include <cstdio>
+#include <cstring>
 #include <vector>
 #include <string>
 #include <algorithm>
-#include <cstdio>
-#include <cstring>
-#include <dmlc/io.h>
-#include <dmlc/filesystem.h>
 
 namespace dmlc {
 namespace io {
diff --git a/src/io/line_split.cc b/src/io/line_split.cc
index df61f2efe2..3096a135f7 100644
--- a/src/io/line_split.cc
+++ b/src/io/line_split.cc
@@ -1,7 +1,7 @@
 // Copyright by Contributors
-#include <algorithm>
 #include <dmlc/io.h>
 #include <dmlc/logging.h>
+#include <algorithm>
 #include "./line_split.h"
 
 namespace dmlc {
diff --git a/src/io/line_split.h b/src/io/line_split.h
index 45cf1ee17b..d0d525e130 100644
--- a/src/io/line_split.h
+++ b/src/io/line_split.h
@@ -7,11 +7,11 @@
 #ifndef DMLC_IO_LINE_SPLIT_H_
 #define DMLC_IO_LINE_SPLIT_H_
 
+#include <dmlc/io.h>
 #include <vector>
 #include <cstdio>
 #include <string>
 #include <cstring>
-#include <dmlc/io.h>
 #include "./input_split_base.h"
 
 namespace dmlc {
diff --git a/src/io/local_filesys.cc b/src/io/local_filesys.cc
index ce35058a78..ec738e3a63 100644
--- a/src/io/local_filesys.cc
+++ b/src/io/local_filesys.cc
@@ -1,11 +1,11 @@
 // Copyright by Contributors
 
-extern "C" {
+#include <dmlc/base.h>
+#include <dmlc/logging.h>
 #include <errno.h>
+extern "C" {
 #include <sys/stat.h>
 }
-#include <dmlc/base.h>
-#include <dmlc/logging.h>
 #ifndef _WIN32
 extern "C" {
 #include <sys/types.h>
diff --git a/src/io/local_filesys.h b/src/io/local_filesys.h
index d3a7f14f4a..a1b5f5cf87 100644
--- a/src/io/local_filesys.h
+++ b/src/io/local_filesys.h
@@ -7,8 +7,8 @@
 #ifndef DMLC_IO_LOCAL_FILESYS_H_
 #define DMLC_IO_LOCAL_FILESYS_H_
 
-#include <vector>
 #include <dmlc/filesystem.h>
+#include <vector>
 
 namespace dmlc {
 namespace io {
diff --git a/src/io/recordio_split.cc b/src/io/recordio_split.cc
index 10ee9cd96f..78c5408cee 100644
--- a/src/io/recordio_split.cc
+++ b/src/io/recordio_split.cc
@@ -1,7 +1,7 @@
 // Copyright by Contributors
-#include <algorithm>
 #include <dmlc/recordio.h>
 #include <dmlc/logging.h>
+#include <algorithm>
 #include "./recordio_split.h"
 
 namespace dmlc {
diff --git a/src/io/recordio_split.h b/src/io/recordio_split.h
index 6d180a93f0..63386b8c07 100644
--- a/src/io/recordio_split.h
+++ b/src/io/recordio_split.h
@@ -7,12 +7,12 @@
 #ifndef DMLC_IO_RECORDIO_SPLIT_H_
 #define DMLC_IO_RECORDIO_SPLIT_H_
 
+#include <dmlc/io.h>
+#include <dmlc/recordio.h>
 #include <vector>
-#include <string>
 #include <cstdio>
+#include <string>
 #include <cstring>
-#include <dmlc/io.h>
-#include <dmlc/recordio.h>
 #include "./input_split_base.h"
 
 namespace dmlc {
diff --git a/src/io/s3_filesys.cc b/src/io/s3_filesys.cc
index 0c01cdffbf..778613092f 100644
--- a/src/io/s3_filesys.cc
+++ b/src/io/s3_filesys.cc
@@ -1,16 +1,6 @@
 // Copyright by Contributors
 extern "C" {
 #include <errno.h>
-}
-#include <string>
-#include <algorithm>
-#include <sstream>
-#include <iomanip>
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <ctime>
-extern "C" {
 #include <curl/curl.h>
 #include <openssl/hmac.h>
 #include <openssl/buffer.h>
@@ -18,6 +8,14 @@ extern "C" {
 }
 #include <dmlc/io.h>
 #include <dmlc/logging.h>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <string>
+#include <algorithm>
+#include <ctime>
+#include <sstream>
+#include <iomanip>
 
 #include "./s3_filesys.h"
 
diff --git a/src/io/s3_filesys.h b/src/io/s3_filesys.h
index 736043a32a..3cf6640e6b 100644
--- a/src/io/s3_filesys.h
+++ b/src/io/s3_filesys.h
@@ -7,9 +7,9 @@
 #ifndef DMLC_IO_S3_FILESYS_H_
 #define DMLC_IO_S3_FILESYS_H_
 
+#include <dmlc/filesystem.h>
 #include <vector>
 #include <string>
-#include <dmlc/filesystem.h>
 
 namespace dmlc {
 namespace io {
diff --git a/src/io/single_file_split.h b/src/io/single_file_split.h
index a423670ad3..b786a747f6 100644
--- a/src/io/single_file_split.h
+++ b/src/io/single_file_split.h
@@ -7,13 +7,13 @@
 #ifndef DMLC_IO_SINGLE_FILE_SPLIT_H_
 #define DMLC_IO_SINGLE_FILE_SPLIT_H_
 
-#include <sys/stat.h>
-#include <string>
-#include <algorithm>
-#include <cstdio>
 #include <dmlc/base.h>
 #include <dmlc/io.h>
 #include <dmlc/logging.h>
+#include <sys/stat.h>
+#include <cstdio>
+#include <string>
+#include <algorithm>
 
 #ifdef _WIN32
 #define stat_struct __stat64
diff --git a/src/io/single_threaded_input_split.h b/src/io/single_threaded_input_split.h
index 0cc7d52201..05dd471777 100644
--- a/src/io/single_threaded_input_split.h
+++ b/src/io/single_threaded_input_split.h
@@ -2,9 +2,9 @@
 #ifndef DMLC_IO_SINGLE_THREADED_INPUT_SPLIT_H_
 #define DMLC_IO_SINGLE_THREADED_INPUT_SPLIT_H_
 
-#include <algorithm>
 #include <dmlc/threadediter.h>
 #include <dmlc/base.h>
+#include <algorithm>
 #include "./input_split_base.h"
 
 namespace dmlc {
diff --git a/src/io/threaded_input_split.h b/src/io/threaded_input_split.h
index 6a66548c5b..0dc2beb620 100644
--- a/src/io/threaded_input_split.h
+++ b/src/io/threaded_input_split.h
@@ -7,11 +7,11 @@
 #ifndef DMLC_IO_THREADED_INPUT_SPLIT_H_
 #define DMLC_IO_THREADED_INPUT_SPLIT_H_
 
-#include <algorithm>
 #include <dmlc/base.h>
 // this code depends on c++11
 #if DMLC_ENABLE_STD_THREAD
 #include <dmlc/threadediter.h>
+#include <algorithm>
 #include "./input_split_base.h"
 
 namespace dmlc {
diff --git a/src/io/uri_spec.h b/src/io/uri_spec.h
index 0711365828..c9c4b38495 100644
--- a/src/io/uri_spec.h
+++ b/src/io/uri_spec.h
@@ -9,12 +9,12 @@
 #ifndef DMLC_IO_URI_SPEC_H_
 #define DMLC_IO_URI_SPEC_H_
 
+#include <dmlc/common.h>
 #include <string>
 #include <sstream>
 #include <map>
 #include <vector>
 #include <utility>
-#include <dmlc/common.h>
 
 namespace dmlc {
 namespace io {
diff --git a/src/recordio.cc b/src/recordio.cc
index ebc86bafa9..1bd712399b 100644
--- a/src/recordio.cc
+++ b/src/recordio.cc
@@ -1,9 +1,9 @@
 // Copyright by Contributors
 
-#include <algorithm>
 #include <dmlc/base.h>
 #include <dmlc/recordio.h>
 #include <dmlc/logging.h>
+#include <algorithm>
 
 
 namespace dmlc {