gcc/testsuite/g++.dg/cpp2a/ucn1.C - gcc - Git at Google

 // { dg-do compile }
 // { dg-options "-std=c++2a" }

 int main()
 {
   U'\U00110000'; // { dg-warning "outside" "110000 outside UCS" }
 }
	// { dg-do compile }
	// { dg-options "-std=c++2a" }

	int main()
	{
	U'\U00110000'; // { dg-warning "outside" "110000 outside UCS" }
	}