clang/test/CXX/over/over.built/spaceship.cpp

   1 // RUN: %clang_cc1 -std=c++20 -verify %s -Wno-tautological-compare
   2
   3 namespace std {
   4   struct strong_ordering {
   5     int n;
   6     constexpr operator int() const { return n; }
   7     static const strong_ordering less, equal, greater;
   8   };
   9   constexpr strong_ordering strong_ordering::less{-1},
  10       strong_ordering::equal{0}, strong_ordering::greater{1};
  11 }
  12
  13 template <typename T>
  14 void f(int i, int* pi, T* pt, T t) {
  15   (void)(i <=> i);
  16   (void)(i <=> pi); // expected-error {{comparison between pointer and integer}}
  17   (void)(i <=> pt);
  18   (void)(pi <=> pt);
  19   (void)(pi <=> t);
  20 }
  21