Re: [Boost-users] boost::lambda::bind with shared_ptr

From: Kevin Heifner (heifner_k_at_[hidden])
Date: 2007-03-05 16:05:25

Steven S. Klug wrote:
> Is there any way using BLL's bind to bind to shared_ptrs in a container?
> 
> e.g.:
> 
> class MyClass
> {
> public:
>     std::string MyFunc()
>     {
>         return str;
>     }
> 
> private:
>     string str;
> };
> 
> vector<shared_ptr<MyClass> > v;
> 
> find_if( v.begin(), v.end(), boost::lambda::bind( &MyClass::MyFunc, _1 ) == 
> string( "steve" ) );

boost::lambda::bind does not support shared_ptrs directly as does 
boost::bind, however you can easily get the same behavior by 
using the boost::lambda::_1 deference capability:

find_if( v.begin(), v.end(), boost::lambda::bind( 
&MyClass::MyFunc, *_1 ) ==  string( "steve" ) );

KevinH
-- 
Kevin Heifner  heifner @ ociweb.com  http://heifner.blogspot.com
           Object Computing, Inc. (OCI) www.ociweb.com