Question

I would like to write a wrapper class with all operators overloaded such that I can detect when we write/read or modify its contents. For instance:

probe<int> x; x = 5;     // write if(x) {    // read    x += 7; // modify } 

Anyone already did that? If not which operators must I overload to be sure I dont miss anything?

Answer 1

You can’t, I think. operator?: isn’t overloadable. Also, if T::T(int) is defined, T foo = 4 is legal but T foo = probe<int>(4) isn’t. There’s at most one user-defined conversion.

Furthermore, because probe is not a POD, the behavior of your program can change.