Re: [Boost-users] [bind] VC++ 2008 compiler error

AMDG Boris wrote:

Can anyone explain to me why VC++ 2008 refuses to compile this code:

void empty() { }

template <class T> void foo(T t) { // error C2664: 'void (T)' : cannot convert // parameter 1 from 'void' to 'boost::_bi::bind_t' boost::bind(bar<T>, t)();

// This one works though: boost::bind(bar<T>, _1)(t); }

template <class T> void bar(T t) { t(); }

int main() { foo(boost::bind(empty)); }

Is this a problem with the VC++ 2008 compiler or am I trying to do something which isn't supported by Boost.Bind?

The expression which you are creating in multiple stages is boost::bind(bar<T>, boost::bind(empty))() Bind tries to evaluates this as bar<T>(empty()) rather than what you intended: bar<T>(empty) Try: foo(boost::protect(boost::bind(empty))); To prevent composition. In Christ, Steven Watanabe