🚀 go-pugleaf

The following program would seem to indicate that the default copy
constructor mechanism is broken in gcc.  It was tested with 2.2.2 and 2.3.2
on sun 4 sunos4.2.  The default copy constructor for Compound should
in turn call the copy constructor for Item, but it does not.

The output is

Item()
Compound()
Pre foo
foo
~Compound()
~Item()
Post foo
~Compound()
~Item()

The output should be something like (produced from ATT 2.1)

Item()
Compound()
Pre foo
Item(const Item& i)    <------ missing above
foo
Post foo
~Compound()
~Item()
~Compound()
~Item()


#include <iostream.h>

class Item {
 public:
  Item() { cerr << "Item()\n"; }
  Item(const Item& i) { cerr << "Item(const Item& i)\n"; }
  ~Item() { cerr << "~Item()\n"; }
};


class Compound {
  Item i;
 public:
  Compound() { cerr << "Compound()\n"; }
//  Compound(const Compound& i) { cerr << "Compound(const Compound& i)\n"; }
  ~Compound() { cerr << "~Compound()\n"; }

  void msg(char *s) { cerr << s; }
};


void foo(Compound a)
{
  a.msg("foo\n");
}


main()
{
  Compound a;

  cerr << "Pre foo\n";
  foo(a);
  cerr << "Post foo\n";
}