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From: Marius Lazer (Marius.Lazer_at_[hidden])
Date: 2006-09-15 11:56:37

I have an STL container of functors and I want to execute them using
std::for_each. In the code snippet below the line marked "// good" works
fine and the one marked "// nothing" compiles fine but does absolutely
nothing. Can anyone explain why? Are there better ways of doing this?
I'm using gcc 4.1.1 on Solaris8.





#include <iostream>

#include <deque>

#include <boost/lambda/lambda.hpp>

#include <boost/lambda/bind.hpp>


using namespace std;

using namespace boost::lambda;


template <typename C>

void call_all(C& c)


   std::for_each(c.begin(), c.end(), _1); // nothing


   std::for_each(c.begin(), c.end(),

                 bind(&C::value_type::operator(), _1)); // good



struct Func


   Func(int s) : i(s) {}

   void operator()() const { cerr << __PRETTY_FUNCTION__ << " " << i <<
endl; }

   int i;






   deque<Func> deq;








   return 0;


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