id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
5040	future.hpp in boost::thread does not compile with /clr	Colin Powers <colin.powers@…>	viboes	"Including thread.hpp in a project using the /clr compiler flag results in the following output.

{{{

[...]\boost-1.45\include\boost-1_45\boost/thread/future.hpp(422) : error C2666: 'boost::scoped_array<T>:
:operator []' : 2 overloads have similar conversions
        with
        [
            T=boost::unique_lock<boost::mutex>
        ]
        [...]\boost-1.45\include\boost-1_45\boost/smart_ptr/scoped_array.hpp(77): could be 'boost::uniqu
e_lock<Mutex> &boost::scoped_array<T>::operator [](ptrdiff_t) const'
        with
        [
            Mutex=boost::mutex,
            T=boost::unique_lock<boost::mutex>
        ]
        or 'built-in C++ operator[(void (__cdecl *)(boost::scoped_array<T> ***), boost::detail::future_waiter::count_typ
e)'
        with
        [
            T=boost::unique_lock<boost::mutex>
        ]
        while trying to match the argument list '(boost::scoped_array<T>, boost::detail::future_waiter::count_type)'
        with
        [
            T=boost::unique_lock<boost::mutex>
        ]
[...]\boost-1.45\include\boost-1_45\boost/thread/future.hpp(435) : error C2666: 'boost::scoped_array<T>:
:operator []' : 2 overloads have similar conversions
        with
        [
            T=boost::unique_lock<boost::mutex>
        ]
        [...]\boost-1.45\include\boost-1_45\boost/smart_ptr/scoped_array.hpp(77): could be 'boost::uniqu
e_lock<Mutex> &boost::scoped_array<T>::operator [](ptrdiff_t) const'
        with
        [
            Mutex=boost::mutex,
            T=boost::unique_lock<boost::mutex>
        ]
        or 'built-in C++ operator[(void (__cdecl *)(boost::scoped_array<T> ***), boost::detail::future_waiter::count_typ
e)'
        with
        [
            T=boost::unique_lock<boost::mutex>
        ]
        while trying to match the argument list '(boost::scoped_array<T>, boost::detail::future_waiter::count_type)'
        with
        [
            T=boost::unique_lock<boost::mutex>
        ]
[...]\boost-1.45\include\boost-1_45\boost/thread/future.hpp(435) : error C2228: left of '.unlock' must h
ave class/struct/union

}}}

I couldn't find any tickets on this problem however a quick google brought up someone who has encountered this before:
http://groups.google.com/group/boost-list/browse_thread/thread/9662c882efc153b6?pli=1

unsigned should probably convert to ptrdiff_t implicitly but it's throwing a wobbly with /clr. Maybe this is fair enough as specifying /clr opens a whole new world of pain (I was just trying my luck really!), nevertheless would it be sensible to change the types from unsigned to ptrdiff_t as that's what operator[] requires?"	Bugs	closed	Boost 1.52.0	thread	Boost 1.45.0	Problem	fixed	MANAGED	viboes