/*
 * Block comment
 */
#include <cstdio>
#include <vector>

#define STRINGIFY(x) #x

using namespace std;  // line comment

namespace foo {

typedef struct Struct {
    int field;
} Typedef;

enum Enum { Foo = 1, Bar = 2 };

Typedef* globalVar;
extern Typedef* externVar;

template <typename T, int N>
class Class {
    T n;

public:
    /**
     */
    void function(int param1, int param2, int param3) {
        int localVar1, localVar2, localVar3;
        int* localVar = new int[1];
        std::vector<int> vec = {1, 2, 3};
        this->n = N;
        localVar1 = param1 + param2 + localVar3;

    label:
        printf("Formatted string %d\n\g", localVar[0]);
        printf(R"**(Formatted raw-string %d\n)**", 1);

/**
 * Macro documentation comment
 * @param A description
 */
#define FOO(A) A
#ifdef DEBUG
        printf("debug");
#endif
    }
};

template <typename T>
concept Concept = requires(T t) { t.field; };

template <typename T>
struct Widget {
    Widget(T t);
};

template <typename T>
Widget(T) -> Widget<typename T::value_type>;

}  // namespace foo