id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1444	scoped_ptr::operator== should be equivalent to a.get()==b.get(), but is currently !!a==!!b	Geoffrey Irving <irving@…>	Peter Dimov	"scoped_ptr<T> does not define an explicit operator==, so an equality test between two
of them falls back to using the implicit conversion to bool.  Here's a program illustrating
the bug:

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

int main()
{
    boost::scoped_ptr<int> a1(new int),a2(new int);
    BOOST_ASSERT(a1!=a2); // fails
    BOOST_ASSERT(!(a1==a2)); // fails
}
}}}

This is a significant bug, since it results in silent failures when converting programs
using normal pointers to scoped_ptr.  Adding definitions for operator== and operator!=
fixes the problem:

{{{
template<class T> inline bool operator==(const scoped_ptr<T>& p, const scoped_ptr<T>& q)
{
    return p.get()==q.get();
}

template<class T> inline bool operator!=(const scoped_ptr<T>& p, const scoped_ptr<T>& q)
{
    return p.get()!=q.get();
}
}}}

I verified that the comparison operators (e.g., <), do not compile, which is fine."	Bugs	closed	To Be Determined	smart_ptr	Boost 1.47.0	Problem	fixed		p.brockamp@…