c++ - transfer loop into C++03 for_each -

c++ - transfer loop into C++03 for_each -

possible duplicate: using bind1st method takes argument reference

i have next traditional c++03 loop (using auto stack overflow space efficiency only):

for (auto = some_vector.begin(); != some_vector.end(); ++it) { foobar.method(*it); }

in c++11, managed rewrite next for_each invocation works well:

std::for_each(some_vector.begin(), some_vector.end(), std::bind(&foobar::method, std::ref(foobar), _1));

(of course of study utilize lambda in c++11, that's not point.) unfortunately, std::bind not part of c++03, tried simulating std::bind1st , std::mem_fun_ref:

std::for_each(some_vector.begin(), some_vector.end(), std::bind1st(std::mem_fun_ref(&foobar::method), std::ref(foobar)));

but triggered c2535 error in visual studio ("member function defined or declared"):

// within class binder1st in header xfunctional result_type operator()(const argument_type& _right) const { // apply functor operands homecoming (op(value, _right)); } result_type operator()(argument_type& _right) const { // apply functor operands <--- error c2535 here homecoming (op(value, _right)); }

is const-correctness bug in visual studio, or have done wrong?

also, std::ref not seem part of c++03. there workaround?

why not utilize std::mem_fun? expects pointer first parameter, such:

#include <functional> #include <algorithm> #include <vector> struct foo{ void method(int){} }; int main(){ std::vector<int> v; foo f; std::for_each(v.begin(), v.end(), std::bind1st(std::mem_fun(&foo::method), &f)); }

c++ visual-studio-2010 stl foreach c++11