Boost bind

[STL-BOOST]

Hi,all. I hanve a class T, and T has a member fuanction func(int a,
int b), In vector<shared_ptr<T>>, how can I use
for_each, this does not compiled:
for_each(v.begin(), v.end(), bind(&T::func, _1)(a, b));

 

[Barry]

Hi,all. I hanve a class T, and T has a member fuanction func(int a,
int b), In vector<shared_ptr<T>>, how can I use
for_each, this does not compiled:
for_each(v.begin(), v.end(), bind(&T::func, _1)(a, b));

"boost::bind(x, y, z)" is to produce a functor.
while your code "bind(&T::func, _1)(a, b)",
the syntax means that you already invoke the functor,
and return what "T::func" returns.

so I think you should write "bind(&T::func, _1, a, b)" instead.

HTH