// RUN: rm -rf %t // RUN: split-file %s %t // RUN: cd %t // // RUN: %clang_cc1 -std=c++20 %t/a.cppm -emit-module-interface -o %t/a.pcm // RUN: %clang_cc1 -std=c++20 %t/b.cppm -emit-module-interface -o %t/b.pcm \ // RUN: -fmodule-file=a=%t/a.pcm // RUN: %clang_cc1 -std=c++20 %t/use.cc -fmodule-file=a=%t/a.pcm -fmodule-file=b=%t/b.pcm \ // RUN: -fsyntax-only -verify // // RUN: %clang_cc1 -std=c++20 %t/a.cppm -emit-reduced-module-interface -o %t/a.pcm // RUN: %clang_cc1 -std=c++20 %t/b.cppm -emit-reduced-module-interface -o %t/b.pcm \ // RUN: -fmodule-file=a=%t/a.pcm // RUN: %clang_cc1 -std=c++20 %t/use.cc -fmodule-file=a=%t/a.pcm -fmodule-file=b=%t/b.pcm \ // RUN: -fsyntax-only -verify //--- a.cppm export module a; namespace n { } //--- ordering.mock.h namespace std { class strong_ordering { public: int n; static const strong_ordering less, equal, greater; constexpr bool operator==(int n) const noexcept { return this->n == n;} constexpr bool operator!=(int n) const noexcept { return this->n != n;} }; constexpr strong_ordering strong_ordering::less = {-1}; constexpr strong_ordering strong_ordering::equal = {0}; constexpr strong_ordering strong_ordering::greater = {1}; class partial_ordering { public: long n; static const partial_ordering less, equal, greater, equivalent, unordered; constexpr bool operator==(long n) const noexcept { return this->n == n;} constexpr bool operator!=(long n) const noexcept { return this->n != n;} }; constexpr partial_ordering partial_ordering::less = {-1}; constexpr partial_ordering partial_ordering::equal = {0}; constexpr partial_ordering partial_ordering::greater = {1}; constexpr partial_ordering partial_ordering::equivalent = {0}; constexpr partial_ordering partial_ordering::unordered = {-127}; } // namespace std //--- b.cppm module; #include "ordering.mock.h" export module b; import a; namespace n { struct monostate { friend constexpr bool operator==(monostate, monostate) = default; }; export struct wrapper { friend constexpr bool operator==(wrapper const &LHS, wrapper const &RHS) { return LHS.m_value == RHS.m_value; } monostate m_value; }; struct monostate2 { auto operator<=>(monostate2 const &) const & = default; }; export struct wrapper2 { friend bool operator==(wrapper2 const &LHS, wrapper2 const &RHS) = default; monostate2 m_value; }; } // namespace n //--- use.cc // expected-no-diagnostics import b; static_assert(n::wrapper() == n::wrapper()); static_assert(n::wrapper2() == n::wrapper2());