Is this an example of reference reassignment? C++11 -

Is this an example of reference reassignment? C++11 -

as understand it, 1 cannot alter reference variable 1 time has been initialized. see, instance, this question. however, here minmal working illustration sort of reassign it. misunderstanding? why illustration print both 42 , 43?

#include <iostream> class t { int x; public: t(int xx) : x(xx) {} friend std::ostream &operator<<(std::ostream &dst, t &t) { dst << t.x; homecoming dst; } }; int main() { auto t = t(42); auto q = t(43); auto &ref = t; std::cerr << ref << std::endl; ref = q; std::cerr << ref << std::endl; homecoming 0; }

that not perform reference reassignment. instead, copy assigns object in variable q object referenced ref (which t in example).

this justifies why got 42 output: default re-create assignment operator modified first object.

c++11 reference