Re: [Boost-users] identical boost expression used in different parts of the code - looking for an alias

Nat Goodspeed wrote:

e r wrote:

...

i'm thinking of using something like

some_type* fo = new boost::bind(&A::f,_1);

and use *fo in place of boost::bind(...). is this crazy? what should some_type be?

You can use boost::function to store the result of a boost::bind expression:

http://boost.org/libs/bind/bind.html#with_boost_function

For instance, you might write:

boost::function bound = boost::bind(&A::f, _1);

depending on the signature of A::f.

Note, don't use 'new', just assign the value of boost::bind.

thanks! i still need a little help, if possible. boost::function deref = boost::bind(&boost::shared_ptr<A>::operator*, _1); Functor ftor; std::vector vec = ...; for_each( vec.begin(), vec.end(), boost::bind( boost::ref(ftor), boost::bind(&boost::shared_ptr<A>::operator*, _1) ) );//fine for_each( vec.begin(), vec.end(), boost::bind( boost::ref(ftor), deref ) );//not fine. see error below //no match for call to ‘(Functor) (boost::function&)