[c++] include <cstdint> wherever uint8_t is used (#6736)

include/LightGBM/bin.h

@@ -9,6 +9,7 @@
 #include <LightGBM/utils/common.h>
 #include <LightGBM/utils/file_io.h>
 
+#include <cstdint>
 #include <limits>
 #include <string>
 #include <functional>

include/LightGBM/cuda/cuda_column_data.hpp

@@ -13,6 +13,7 @@
 #include <LightGBM/bin.h>
 #include <LightGBM/utils/openmp_wrapper.h>
 
+#include <cstdint>
 #include <vector>
 
 namespace LightGBM {

include/LightGBM/cuda/cuda_row_data.hpp

@@ -15,6 +15,7 @@
 #include <LightGBM/train_share_states.h>
 #include <LightGBM/utils/openmp_wrapper.h>
 
+#include <cstdint>
 #include <vector>
 
 #define COPY_SUBROW_BLOCK_SIZE_ROW_DATA (1024)

include/LightGBM/dataset.h

@@ -15,6 +15,7 @@
 #include <LightGBM/utils/random.h>
 #include <LightGBM/utils/text_reader.h>
 
+#include <cstdint>
 #include <string>
 #include <functional>
 #include <map>

include/LightGBM/feature_group.h

@@ -10,6 +10,7 @@
 #include <LightGBM/meta.h>
 #include <LightGBM/utils/random.h>
 
+#include <cstdint>
 #include <cstdio>
 #include <memory>
 #include <vector>

include/LightGBM/train_share_states.h

@@ -11,6 +11,7 @@
 #include <LightGBM/utils/threading.h>
 
 #include <algorithm>
+#include <cstdint>
 #include <memory>
 #include <vector>
 

include/LightGBM/tree.h

@@ -8,6 +8,7 @@
 #include <LightGBM/dataset.h>
 #include <LightGBM/meta.h>
 
+#include <cstdint>
 #include <string>
 #include <map>
 #include <memory>

src/c_api.cpp

@@ -22,6 +22,7 @@
 
 #include <string>
 #include <cstdio>
+#include <cstdint>
 #include <functional>
 #include <memory>
 #include <mutex>

src/io/cuda/cuda_column_data.cpp

@@ -7,6 +7,8 @@
 
 #include <LightGBM/cuda/cuda_column_data.hpp>
 
+#include <cstdint>
+
 namespace LightGBM {
 
 CUDAColumnData::CUDAColumnData(const data_size_t num_data, const int gpu_device_id) {

src/io/json11.cpp

@@ -23,6 +23,7 @@
 #include <LightGBM/utils/log.h>
 
 #include <cmath>
+#include <cstdint>
 #include <cstdio>
 #include <cstdlib>
 #include <limits>