Re: Your monthly ICE report

[Klaus-Georg Adams <Klaus-Georg dot Adams at chemie dot uni-karlsruhe dot de>]

Hi Carlo,
if your real problem is this:
  // This should be called as copy constructor, right???
  template<class Y>
  lockable_auto_ptr(const lockable_auto_ptr<Y> &) {
    cerr << "Called template<class Y> lockable_auto_ptr(const lockable_auto_ptr<Y> &)" << endl;
  }

  template<class Y>
  lockable_auto_ptr& operator=(const lockable_auto_ptr<Y> &) {
    cerr << "Called template<class Y> lockable_auto_ptr& operator=(const lockable_auto_ptr<Y> &)" << endl;
    return *this;
  }

then your code is broken: [class.copy], clause 3:
...A member function template is never instantiated to perform the
copy of a class object to an object of its class type.
and clause 9: A user-declared copy assignment operator X::operator= is
a non-static non-template member function of class X ...

This means you use the implicitely defined Copyctor, which is a Bad
Thing for auto_ptr :-)

-- kga
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Klaus-Georg Adams        Email: Klaus-Georg.Adams@chemie.uni-karlsruhe.de
Institut f. Anorg. Chemie, Lehrstuhl II            Tel: 49(0)721 608 3485
Universität Karlsruhe, D-76128 Karlsruhe
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