[Adopted at the February, 2016 meeting.]

Consider the following example:

  #include <stdio.h>

  struct X {
    X() { puts("X()"); }
    X(const X&) { puts("X(const X&)"); }
    ~X() { puts("~X()"); }
  };

  struct Y { ~Y() noexcept(false) { throw 0; } };

  X f() {
    try {
      Y y;
      return {};
    } catch (...) {
    }
    return {};
  }

  int main() {
    f();
  }

Current implementations print X() twice but ~X() only once. That is obviously wrong, but it is not clear that the current wording covers this case.