1 // PR c++/97121
2 // { dg-do compile { target c++20 } }
3 
4 #include <compare>
5 
6 class MyClass
7 {
8   int mValue;	// { dg-error "three-way comparison of 'MyClass::mValue' has type 'std::strong_ordering', which does not convert to 'bool'" }
9 
10 public:
MyClass(int value)11   MyClass(int value): mValue(value) {}
12 
13   bool operator<=>(const MyClass&) const = default;
14 };
15 
main()16 int main()
17 {
18   MyClass a = 10, b = 15;
19   return (a < b);	// { dg-error "use of deleted function 'constexpr bool MyClass::operator<=>\\\(const MyClass&\\\) const'" }
20 }
21