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+= Friend Operator =
+
+{{{c++
+#include <iostream>
+
+class T {
+ int x;
+
+public:
+ T (int x);
+
+ friend std::ostream& operator<<(std::ostream&, const T&);
+};
+
+T::T (int x) {
+ this->x = x;
+}
+
+
+std::ostream& operator<<(std::ostream& out, const T& t) {
+ out << "T {" << t.x << "}";
+ return out;
+}
+
+int main () {
+ T t(10);
+
+ std::cout << t << std::endl;
+}
+}}}