#include <algorithm>
#include <functional>
#include <iostream>
#include <string>
#include <vector>
 
int main()
{
  // Binder mit Lambda-Ausdruck
  auto bruch      = [](int x, int y) { return double(x)/y; };
  auto reziprok   = std::bind(bruch, std::placeholders::_2, std::placeholders::_1); // Umordnen von Parametern
  auto stammbruch = std::bind(bruch, 1, std::placeholders::_1); // Currying
  
  std::cout << bruch(3, 4) << " = 1/" << reziprok(3, 4) << '\n';
  std::cout << "1/3 = " << stammbruch(3) << '\n';	
  std::cout << "1/3 = " << stammbruch(3, 5, 7, 9) << '\n'; // erlaubt, aber irreführend!
  /// @see http://stackoverflow.com/questions/13251976/why-do-objects-returned-from-bind-ignore-extra-arguments
  /// @see http://stackoverflow.com/questions/7394367/is-using-boostbind-to-pass-more-arguments-than-expected-safe
  
  // Binder mit Methodenzeigern
  auto add_space = std::bind(&std::string::push_back, std::placeholders::_1, ' ');

  std::vector<std::string> morse = { ".-", "-...", "-.-.", "-..", "." };
  std::for_each(begin(morse), end(morse), add_space);
  // for (auto& s : morse) add_space(s);
 
  for (auto s : morse) std::cout << s;
  std::cout << '\n';
}