4 ms·

Wouldn't you have a problem with reference cycles in C++ smart pointers? Not sure if they do anything special to prevent this.

• saagarjha 9y ago
  std::weak_ptr is there for resolving reference cycles.
  • pdpi 9y ago
    Which means you have to design around it. You can definitely run into problems with cyclical shared_ptr dependencies
    • saagarjha 9y ago
      Well, you have to do this for every language that does reference counting.
      • pjmlp 9y ago
        Either that, or have a cycle collector in addition to the normal reference counting optimizations.
• nobugs 9y ago
  std::unique_ptr<> won't allow you to have 'owning' reference cycles; neither 'owning' reference cycles are really necessary in real-world programs.