1 // RUN: %clang_cc1 -std=c++2a -verify -Wno-defaulted-function-deleted -include %s %s 2 // 3 // RUN: %clang_cc1 -std=c++2a -emit-pch %s -o %t.pch 4 // RUN: %clang_cc1 -std=c++2a -include-pch %t.pch %s -verify 5 // 6 // RUN: %clang_cc1 -std=c++2a -emit-pch -fpch-instantiate-templates %s -o %t.pch 7 // RUN: %clang_cc1 -std=c++2a -include-pch %t.pch %s -verify 8 9 // expected-no-diagnostics 10 11 #ifndef INCLUDED 12 #define INCLUDED 13 14 namespace std { 15 struct strong_ordering { 16 int n; operator intstd::strong_ordering17 constexpr operator int() const { return n; } 18 static const strong_ordering equal, greater, less; 19 }; 20 constexpr strong_ordering strong_ordering::equal = {0}; 21 constexpr strong_ordering strong_ordering::greater = {1}; 22 constexpr strong_ordering strong_ordering::less = {-1}; 23 } 24 25 // Ensure that we can round-trip DefaultedFunctionInfo through an AST file. 26 namespace LookupContext { 27 struct A {}; 28 29 namespace N { f()30 template <typename T> auto f() { 31 bool operator==(const T &, const T &); 32 bool operator<(const T &, const T &); 33 struct B { 34 T a; 35 std::strong_ordering operator<=>(const B &) const = default; 36 }; 37 return B(); 38 } 39 } 40 } 41 42 #else 43 44 namespace LookupContext { 45 namespace M { 46 bool operator<=>(const A &, const A &) = delete; 47 bool operator==(const A &, const A &) = delete; 48 bool operator<(const A &, const A &) = delete; 49 bool cmp = N::f<A>() < N::f<A>(); 50 } 51 } 52 53 #endif 54