It would be great if the tool could show the special operations generated by the compiler as well as the ones requested using default.

struct C { 
  int i; 
};

struct C { 
  int i;
  C() = default; 
  C(C const&) = default; 
  C(C &&) = default; 
  C& operator=(C const&) = default; 
  C& operator=(C &&) = default; 
  ~C() noexcept = default;
};

In addition when the user request the default and the compiler deletes the function as he default generated will be ill formed, the tool could replace =default by =delete.

Before

struct C
{
  int & i;
  C() = default;
  C(const C &) = default;
};

https://cppinsights.io/s/cd13011a

After

struct C
{
  int & i;
  inline C() = delete;
  inline C(const C &) = delete;
};

P.S. I'm not asking to show the generated code, just to show what are the provided operations and which ones are deleted.

This doesn't mean thathaving the option to have the code as well will not be welcome.