Forgot 'const' on my last checkin git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@217877 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/ostream b/include/ostream index 36f0861..2e27070 100644 --- a/include/ostream +++ b/include/ostream 
@@ -179,12 +179,12 @@  void swap(basic_ostream& __rhs);    #ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS - basic_ostream (basic_ostream& __rhs) = delete; - basic_ostream& operator=(basic_ostream& __rhs) = delete; + basic_ostream (const basic_ostream& __rhs) = delete; + basic_ostream& operator=(const basic_ostream& __rhs) = delete;  #else  private: - basic_ostream (basic_ostream& __rhs); - basic_ostream& operator=(basic_ostream& __rhs); + basic_ostream (const basic_ostream& __rhs); + basic_ostream& operator=(const basic_ostream& __rhs);  #endif  public: