On 2/27/06, yinglcs2@yahoo.com wrote:

Hi I have a Boost lambda question, I appreciate is someone can help me out:

I have a class A: class A{ private: B& getB() {return _b;} B& _b; };

vector<A> aList;

void aFunction (A& a, B& b);

how can I write a loop to walk thru a list of A and call aFunction.

for (vector<A>::iterator itr = aList.begin; itr != end; itr++) { A a = (*itr); aFunction (a, a->getB()); }

For a start, shouldn't it be aFunction(a, a.getB()); - a's got no operator->. If so, use this std::for_each(aList.begin(), aList.end(),bind(&aFunction, _1, bind(&A::getB, _1))); HTH Stuart Dootson