| // RUN: %clang_cc1 -std=c++2a -verify %s |
| |
| template<int> struct X {}; |
| |
| X<1> operator<<(X<0>, X<0>); |
| X<2> operator<=>(X<0>, X<1>); |
| X<2> operator<=>(X<1>, X<0>); |
| X<3> operator<(X<0>, X<2>); |
| X<3> operator<(X<2>, X<0>); |
| |
| void f(X<0> x0, X<1> x1) { |
| X<2> a = x0 <=> x0 << x0; |
| X<2> b = x0 << x0 <=> x0; // expected-warning {{overloaded operator << has higher precedence than comparison operator}} expected-note 2{{}} |
| X<3> c = x0 < x0 <=> x1; |
| X<3> d = x1 <=> x0 < x0; |
| X<3> e = x0 < x0 <=> x0 << x0; |
| X<3> f = x0 << x0 <=> x0 < x0; // expected-warning {{overloaded operator << has higher precedence than comparison operator}} expected-note 2{{}} |
| } |
| |
| struct PR41991 { |
| [[nodiscard]] friend bool operator==(const PR41991&, const PR41991&) = default; |
| [[nodiscard]] friend bool operator!=(const PR41991&, const PR41991&) = delete; |
| [[nodiscard]] friend bool operator<(const PR41991&, const PR41991&); // expected-error {{an attribute list cannot appear here}} |
| }; |