[Bug c++/34121] wrong this pointer passed to constructor of temporary object

["gcc-bugzilla at contacts dot eelis dot net" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from gcc-bugzilla at contacts dot eelis dot net  2008-08-21 12:51 -------
Isolated and reproduced with GCC 4.4 on x86_64:

  #include <iostream>
  #include <stdint.h>

  struct A
  {
    uint64_t p;
    char m_ac[18];

    A() { std::cout << "default constructed at " << this << '\n'; }
    ~A() { std::cout << "destructed at " << this << '\n'; }

    A(A const &) { std::cout << "copy constructed at " << this << '\n'; }
  };

  A f() { return A(); }

  struct B: A { B(): A(f()) {} };

  int main() { B b; }

Output:

  default constructed at 0x7fffd583ca40
  destructed at 0x7fffd583ca90

These two addresses really should be the same.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34121