unspecified_bool_type - based operator bool emulations result in meaningless comparison operators

[anonymous]

#include <iostream>
#include <boost/scoped_ptr.hpp>

int main()
{
    typedef boost::scoped_ptr<int> ptr_t;

    ptr_t x(new int);
    ptr_t y(new int);

    std::cout << (x != y) << std::endl;
    std::cout << (x == y) << std::endl;

    return 0;
}

[Marshall Clow]

Trying this on the 1.36 release branch using gcc 4.2 gives me compile errors:

junk.cpp: In function ‘int main()’: /Users/marshall/Sources/boost/release/boost/scoped_ptr.hpp:51: error: ‘void boost::scoped_ptr<T>::operator!=(const boost::scoped_ptr<T>&) const [with T = int]’ is private junk.cpp:11: error: within this context

[Peter Dimov]

This is a duplicate of #1444, which has been fixed with [43317].