Class Foo

lib/yamlcpp/test/integration/emitter_test.cpp:978–984

}

struct Foo {
  Foo() : x(0) {}
  Foo(int x_, const std::string& bar_) : x(x_), bar(bar_) {}

  int x;
  std::string bar;
};

Emitter& operator<<(Emitter& out, const Foo& foo) {
  out << BeginMap;