Foreach loop in C++ equivalent of C#

ranged based for:

std::array<std::string, 3> strarr = {"ram", "mohan", "sita"};
for(const std::string& str : strarr) {
  listbox.items.add(str);
}

pre c++11

std::string strarr[] = {"ram", "mohan", "sita"};
for(int i = 0; i < 3; ++i) {
  listbox.items.add(strarr[i]);
}

or

std::string strarr[] = {"ram", "mohan", "sita"};
std::vector<std::string> strvec(strarr, strarr + 3);
std::vector<std::string>::iterator itr = strvec.begin();
while(itr != strvec.end()) {
  listbox.items.add(*itr);
  ++itr;
}

Using Boost:

boost::array<std::string, 3> strarr = {"ram", "mohan", "sita"};
BOOST_FOREACH(std::string & str, strarr) {
  listbox.items.add(str);
}

In C++0x you have

for(string str: strarr) { ... }

But till then use ordinary for loop.

After getting used to the var keyword in C#, I'm starting to use the auto keyword in C++11. They both determine type by inference and are useful when you just want the compiler to figure out the type for you. Here's the C++11 port of your code:

#include <array>
#include <string>

using namespace std;

array<string, 3> strarr = {"ram", "mohan", "sita"};
for(auto str: strarr) {
  listbox.items.add(str);
}

Boost has a macro that will do this for you.

http://www.boost.org/doc/libs/1_44_0/doc/html/foreach.html

Just for fun (new lambda functions):

      static std::list<string> some_list;

      vector<string> s; 
      s.push_back("a");
      s.push_back("b");
      s.push_back("c");

      for_each( s.begin(), s.end(), [=](string str) 
        {
          some_list.push_back(str);
        }

  );

  for_each( some_list.begin(), some_list.end(), [](string ss) { cout << ss; } );

Although doing a simple loop is recommended :-)