Remove some warnings from clang. (#7533)

* Unused variable. * Unnecessary virtual function.
2022-01-05 03:28:21 +08:00
parent ec56d5869b
commit eea094e1bc
3 changed files with 4 additions and 9 deletions
--- a/include/xgboost/json_io.h
+++ b/include/xgboost/json_io.h
@@ -115,12 +115,10 @@ class JsonReader {
 class JsonWriter {
  static constexpr size_t kIndentSize = 2;

-  size_t n_spaces_;
  std::vector<char>* stream_;

 public:
-  explicit JsonWriter(std::vector<char>* stream) :
-      n_spaces_{0}, stream_{stream} {}
+  explicit JsonWriter(std::vector<char>* stream) : stream_{stream} {}

  virtual ~JsonWriter() = default;