AMDG Robert Dailey wrote:

Hi,

In the Boost.Lambda documentation, it has a section for operators that cannot be overloaded, but I'm not really sure if this means you cannot use these operators with lambda expressions.

I have the following map:

class SomeClass { public: void Foo() {} };

std::map mymap;

I want to be able to do std::for_each() on this map and use lambdas to call the Foo() member on each element in the map. For example:

std::for_each( mymap.begin(), mymap.end(), _1.second.Foo() );

Obviously the above does not compile. Is there a way to make this work without doing some crazy template specialization? Thanks.

It's pretty ugly: #include <map> #include <algorithm> #include #include class SomeClass { public: void Foo() {} }; int main() { using boost::lambda::bind; using boost::lambda::_1; std::map mymap; std::for_each( mymap.begin(), mymap.end(), bind(&SomeClass::Foo, bind(&std::pair::second, _1)) ); } You can do the same thing using Boost.Bind, too. In Christ, Steven Watanabe