[Boost-users] Using bind with function objects

From: Olaf Peter (ope-devel_at_[hidden])
Date: 2008-02-28 12:52:11

Hi,

this test file doesn't compile, but why?

$ LANG=en g++ bind.cpp -o bind && ./bind
/usr/include/boost/bind.hpp: In member function 'R boost::_bi::list2<A1, 
A2>::operator()(boost::_bi::type<R>, F&, A&, long int) [with R = int, F 
= Foo, A = boost::_bi::list2<const char*&, const int&>, A1 = 
boost::arg<1> (*)(), A2 = boost::arg<2> (*)()]':
/usr/include/boost/bind/bind_template.hpp:89:   instantiated from 
'typename boost::_bi::result_traits<R, F>::type boost::_bi::bind_t<R, F, 
L>::operator()(A1&, const A2&) [with A1 = const char*, A2 = int, R = 
int, F = Foo, L = boost::_bi::list2<boost::arg<1> (*)(), boost::arg<2> 
(*)()>]'
bind.cpp:22:   instantiated from here
/usr/include/boost/bind.hpp:278: error: void value not ignored as it 
ought to be

Thanks,
Olaf