+/* A macro to disable the copy constructor and assignment operator.
+ When building with C++11 and above, the methods are explicitly
+ deleted, causing a compile-time error if something tries to copy.
+ For C++03, this just declares the methods, causing a link-time
+ error if the methods end up called (assuming you don't
+ define them). For C++03, for best results, place the macro
+ under the private: access specifier, like this,
+
+ class name_lookup
+ {
+ private:
+ DISABLE_COPY_AND_ASSIGN (name_lookup);
+ };
+
+ so that most attempts at copy are caught at compile-time. */
+
+#if __cplusplus >= 201103
+#define DISABLE_COPY_AND_ASSIGN(TYPE) \
+ TYPE (const TYPE&) = delete; \
+ void operator= (const TYPE &) = delete
+ #else
+#define DISABLE_COPY_AND_ASSIGN(TYPE) \
+ TYPE (const TYPE&); \
+ void operator= (const TYPE &)
+#endif /* __cplusplus >= 201103 */
+