[gcc.git] / gcc / testsuite / g++.dg / cpp0x / sfinae17.C

// PR c++/48530
// { dg-do compile { target c++11 } }

template<class T,
	 class = decltype(T{})
>
char f(int);

template<class>
char (&f(...))[2];

struct DelDtor {
  ~DelDtor() = delete;
};

static_assert(sizeof(f<DelDtor[2]>(0)) != 1, "Error");

struct A
{
  static DelDtor *p;
};

template<class T,
	 class = decltype(delete T::p, (T*)0)
>
char g(int);

template<class>
char (&g(...))[2];

static_assert(sizeof(g<DelDtor>(0)) != 1, "Error");
Commit	Line	Data
574cfaa4	1	// PR c++/48530
4b2e63de	2	// { dg-do compile { target c++11 } }
574cfaa4 JM	3
	4	template<class T,
	5	class = decltype(T{})
	6	>
	7	char f(int);
	8
	9	template<class>
	10	char (&f(...))[2];
	11
	12	struct DelDtor {
	13	~DelDtor() = delete;
	14	};
	15
	16	static_assert(sizeof(f<DelDtor[2]>(0)) != 1, "Error");
	17
	18	struct A
	19	{
	20	static DelDtor *p;
	21	};
	22
	23	template<class T,
	24	class = decltype(delete T::p, (T*)0)
	25	>
	26	char g(int);
	27
	28	template<class>
	29	char (&g(...))[2];
	30
	31	static_assert(sizeof(g<DelDtor>(0)) != 1, "Error");