RE: [Boost-users] Boost lambda and shared_ptr

18 Feb 2005

      I guess I had not done my homework all the way. I found a way to make
bll::bind work when the placeholder is a shared_ptr by dereferencing it. In
other words,

std::for_each(vpFoos2.begin(),vpFoos2.end(),
boost::lambda::bind(&CFoo::SetI,
	*boost::lambda::_1, 5)); 

While this solves most of my problems I still cannot make it work for this
other case:

shared_ptr<CFoo> pFoo(new CFoo);
std::vector<int> vnValues(10, 1);
std::for_each(vnValues.begin(), vnValues.end(),
boost::lambda::bind(&CFoo::SetI, pFoo, boost::lambda::_1));

I tried dereferencing pFoo but it didn't work.

Anyone?

Thanks

-delfin
...
-----Original Message-----
From: boost-users-bounces@lists.boost.org [mailto:boost-users-
bounces@lists.boost.org] On Behalf Of Delfin Rojas
Sent: Friday, February 18, 2005 11:09 AM
To: boost-users@lists.boost.org
Subject: RE: [Boost-users] Boost lambda and shared_ptr
Can somebody comment in this, please?
Thanks
-delfin
...
-----Original Message-----
From: boost-users-bounces@lists.boost.org [mailto:boost-users-
bounces@lists.boost.org] On Behalf Of Delfin Rojas
Sent: Wednesday, February 16, 2005 7:09 PM
To: boost-users@lists.boost.org
Subject: [Boost-users] Boost lambda and shared_ptr
Hi all,
I would like to know if there is a way right now or if there is a plan
to
add the possibility of using bll::bind (boost lambda bind) with
shared_ptr
as one uses it with normal pointers.
This functionality is currently supported by boost::bind but I cannot
find
a
way to make it work with lambda bind.
For example:
class CFoo
{
public:
  void SetI(const int & nI) { ... }
};
std::vector vpFoos;
std::vector< boost::shared_ptr<CFoo> > vpFoos2;
//Assume I initialize the vectors
std::for_each(vpFoos.begin(),vpFoos.end(),
boost::lambda::bind(&CFoo::SetI,
boost::lambda::_1, 5)); //Works great
//I _cannot_ find to make this work with vpFoos2; I _can_ make it work
with
boost::bind.
Thanks
-delfin
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