C++0x Lambda Demo

cxx0x-address.cc

#include <string>
#include <vector>
#include <iostream>
#include <algorithm>
#include <iterator>
class Address {
public:
  template<typename Func>
  std::vector<std::string> findMatchingAddresses(Func func) {
    std::vector<std::string> results;
    for(auto itr = _addresses.begin(), end = _addresses.end();
        itr != end;
        ++itr) {
      if(func(*itr)) {
        results.push_back(*itr);
      }
    }
    return results;
  }

  void addAddress(std::string newAddress) {
    _addresses.push_back(newAddress);
  }

private:
  std::vector<std::string> _addresses;
};

int main() {
  auto func = []() { std::cout << "Hello World!" << std::endl; };
  func();
  Address g_address_book;
  g_address_book.addAddress("gnu.org");
  g_address_book.addAddress("ibm.com");
  g_address_book.addAddress("wikipedia.org");
  std::vector<std::string> ret = g_address_book.findMatchingAddresses(
                                                                      [](const std::string& addr) {return addr.find(".org") != std::string::npos;});
  std::copy(ret.begin(), ret.end(), std::ostream_iterator<std::string>(std::cout, " "));
  std::cout << std::endl;

  auto func2 = [](std::string x){ return "I find it! It's " + x; };
  std::transform(ret.begin(), ret.end(), std::ostream_iterator<std::string>(std::cout, "\n"), func2);
  return 0;
}

Makefile

CXX = i686-pc-mingw32-g++
CXXFLAGS = -Wall
CXXDEBUGFLAG = -g
CXXOPTFLAG = -O3
CXX0XFLAG = -std=c++0x
CXXLINKFLAG = -static
BINS = cxx0x-address

all: $(BINS)

cxx0x-address: cxx0x-address.o
	$(CXX) $(CXXLINKFLAG) -o$@ $^

.cc.o:
	$(CXX) $(CXXFLAGS) $(CXXOPTFLAG) $(CXX0XFLAG) -c $^

clean:
	rm -vf *.o

dist-clean: 
	rm -vf $(BINS)