gcc/testsuite/g++.dg/cpp0x/auto19.C - gcc - Git at Google

 // { dg-options -std=c++0x }

 struct Explicit {
   Explicit() = default;  // Line 2
   explicit Explicit(const Explicit&){}
 } ex;

 auto ex2(ex); // Line 6
	// { dg-options -std=c++0x }

	struct Explicit {
	Explicit() = default; // Line 2
	explicit Explicit(const Explicit&){}
	} ex;

	auto ex2(ex); // Line 6