1 // { dg-do compile { target c++14 } }
2 // { dg-additional-options "-Wno-return-type" }
3 
f(int i)4 constexpr int f (int i)
5 {
6 }
7 
8 constexpr int i = f(42);	// { dg-error "flows off the end|in .constexpr. expansion of " }
9