std::optional ist liebe

/compile with:
//      clang++ -std=c++1y -stdlib=libc++ optional.cpp

#include <experimental/optional>
#include <string>
#include <cstdio>

std::experimental::optional<std::string> get_fancy_shit() {
  //return std::string("some fancy shit!");
  return std::experimental::nullopt;
}

int main(int argc, char *argv[]) {
  auto s = get_fancy_shit().value_or("no fancy shit!");
  printf("I got: %s\n", s.c_str());

  auto o = get_fancy_shit();
  if (o) {
    printf("We have some fancy shit\n");
  } else {
    printf("We have no fancy shit\n");
  }

  return 0;
}