gcc/testsuite/g++.dg/cpp1y/lambda-generic-trailing1.C - gcc - Git at Google

 // { dg-do compile { target c++14 } }

 template <class T>
 void f()
 {
   auto lam = [](auto a)->decltype(++a) { return a; };
 }

 int main()
 {
   f<int>();
 }
	// { dg-do compile { target c++14 } }

	template <class T>
	void f()
	{
	auto lam = [](auto a)->decltype(++a) { return a; };
	}

	int main()
	{
	f<int>();
	}