I am getting an
error when compiling the following code on gcc32. Could someone please point out
what is the problem? Thank you.
class Test {
};
template <class
T>
void foo(T arg_) { }
template <class
T>
void fooRef(const T& arg_){ }
int
main(int)
{
Test t;
boost::reference_wrapper<Test> tr(t);
boost::function<void()> fun1 =
boost::bind(&::foo<boost::reference_wrapper<Test> >,
tr); // line 41
boost::function<void()> fun2 =
boost::bind(&::fooRef<boost::reference_wrapper<Test> >,
tr); // line 42
}
....
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/bind.hpp: In member
function `void
boost::_bi::list1<A1>::operator()(boost::_bi::type<void>, F&,
A&, int) [with F = void
(*)(boost::reference_wrapper<Test>), A =
boost::_bi::list0, A1 =
boost::reference_wrapper<Test>]':
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/bind/bind_template.hpp:20:
instantiated from `boost::_bi::result_traits<R, F>::type
boost::_bi::bind_t<R, F, L>::operator()() [with R = void, F = void
(*)(boost::reference_wrapper<Test>), L =
boost::_bi::list1<boost::reference_wrapper<Test>
>]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:136:
instantiated from `static void
boost::detail::function::void_function_obj_invoker0<FunctionObj,
R>::invoke(boost::detail::function::any_pointer) [with FunctionObj =
boost::_bi::bind_t<void, void (*)(boost::reference_wrapper<Test>),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R =
void]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:479:
instantiated from `void boost::function0<R,
Allocator>::assign_to(FunctionObj, boost::detail::function::function_obj_tag)
[with FunctionObj = boost::_bi::bind_t<void, void
(*)(boost::reference_wrapper<Test>),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R = void,
Allocator =
std::allocator<void>]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:430:
instantiated from `void boost::function0<R, Allocator>::assign_to(Functor)
[with Functor = boost::_bi::bind_t<void, void
(*)(boost::reference_wrapper<Test>),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R = void,
Allocator =
std::allocator<void>]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:294:
instantiated from `boost::function0<R, Allocator>::function0(Functor,
boost::enable_if_c<boost::type_traits::ice_not<boost::is_integral<Functor>::value>::value,
int>::type) [with Functor = boost::_bi::bind_t<void, void
(*)(boost::reference_wrapper<Test>),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R = void,
Allocator =
std::allocator<void>]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:638:
instantiated from `boost::function<R ()(), Allocator>::function(Functor,
boost::enable_if_c<boost::type_traits::ice_not<boost::is_integral<Functor>::value>::value,
int>::type) [with Functor = boost::_bi::bind_t<void, void
(*)(boost::reference_wrapper<Test>),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R = void,
Allocator = std::allocator<void>]'
test10.C:41: instantiated from
here
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/bind.hpp:229:
conversion
from `Test' to non-scalar type
`boost::reference_wrapper<Test>'
requested
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/bind.hpp: In
member
function `void
boost::_bi::list1<A1>::operator()(boost::_bi::type<void>, F&,
A&, int) [with F = void (*)(const
boost::reference_wrapper<Test>&), A =
boost::_bi::list0, A1 =
boost::reference_wrapper<Test>]':
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/bind/bind_template.hpp:20:
instantiated from `boost::_bi::result_traits<R, F>::type
boost::_bi::bind_t<R, F, L>::operator()() [with R = void, F = void
(*)(const boost::reference_wrapper<Test>&), L =
boost::_bi::list1<boost::reference_wrapper<Test>
>]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:136:
instantiated from `static void
boost::detail::function::void_function_obj_invoker0<FunctionObj,
R>::invoke(boost::detail::function::any_pointer) [with FunctionObj =
boost::_bi::bind_t<void, void (*)(const
boost::reference_wrapper<Test>&),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R =
void]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:479:
instantiated from `void boost::function0<R,
Allocator>::assign_to(FunctionObj, boost::detail::function::function_obj_tag)
[with FunctionObj = boost::_bi::bind_t<void, void (*)(const
boost::reference_wrapper<Test>&),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R = void,
Allocator =
std::allocator<void>]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:430:
instantiated from `void boost::function0<R, Allocator>::assign_to(Functor)
[with Functor = boost::_bi::bind_t<void, void (*)(const
boost::reference_wrapper<Test>&),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R = void,
Allocator =
std::allocator<void>]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:294:
instantiated from `boost::function0<R, Allocator>::function0(Functor,
boost::enable_if_c<boost::type_traits::ice_not<boost::is_integral<Functor>::value>::value,
int>::type) [with Functor = boost::_bi::bind_t<void, void (*)(const
boost::reference_wrapper<Test>&),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R = void,
Allocator =
std::allocator<void>]'
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/function/function_template.hpp:638:
instantiated from `boost::function<R ()(), Allocator>::function(Functor,
boost::enable_if_c<boost::type_traits::ice_not<boost::is_integral<Functor>::value>::value,
int>::type) [with Functor = boost::_bi::bind_t<void, void (*)(const
boost::reference_wrapper<Test>&),
boost::_bi::list1<boost::reference_wrapper<Test> > >, R = void,
Allocator = std::allocator<void>]'
test10.C:42: instantiated from
here
/ms/dist/fsf/PROJ/boost/1.33.1/common/include/boost/bind.hpp:229:
could not
convert `(+a)->boost::_bi::list0::operator[](const
boost::reference_wrapper<T>&) const [with T =
Test](this)' to `const
boost::reference_wrapper<Test>&'