[gcc.git] / gcc / testsuite / g++.dg / cpp0x / vt-65790.C

// PR c++/65790
// { dg-do compile { target c++11 } }

extern "C" int printf(const char* ...);

namespace std
{
  typedef decltype(sizeof(0)) size_t;

  template<typename _Tp, _Tp... _Idx>
    struct integer_sequence
    {
      typedef _Tp value_type;
      static constexpr size_t size() { return sizeof...(_Idx); }
    };

  template<size_t... _Idx>
    using index_sequence = integer_sequence<size_t, _Idx...>;
}

void g(std::size_t a, std::size_t b, std::size_t c)
{
  printf("%zu, %zu, %zu\n", a, b, c);
}

template <std::size_t... Seq>
void f(std::index_sequence<Seq...>)
{
  g(Seq...);
}

int main()
{
  f(std::index_sequence<0, 1, 2>());
}
Commit	Line	Data
a2fe3985 PC	1	// PR c++/65790
	2	// { dg-do compile { target c++11 } }
	3
	4	extern "C" int printf(const char* ...);
	5
	6	namespace std
	7	{
	8	typedef decltype(sizeof(0)) size_t;
	9
	10	template<typename _Tp, _Tp... _Idx>
	11	struct integer_sequence
	12	{
	13	typedef _Tp value_type;
	14	static constexpr size_t size() { return sizeof...(_Idx); }
	15	};
	16
	17	template<size_t... _Idx>
	18	using index_sequence = integer_sequence<size_t, _Idx...>;
	19	}
	20
	21	void g(std::size_t a, std::size_t b, std::size_t c)
	22	{
	23	printf("%zu, %zu, %zu\n", a, b, c);
	24	}
	25
	26	template <std::size_t... Seq>
	27	void f(std::index_sequence<Seq...>)
	28	{
	29	g(Seq...);
	30	}
	31
	32	int main()
	33	{
	34	f(std::index_sequence<0, 1, 2>());
	35	}