forked from OSchip/llvm-project
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// RUN: %check_clang_tidy -std=c++20 %s readability-container-size-empty %t -- -- -fno-delayed-template-parsing
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namespace std {
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struct strong_ordering {
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int n;
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constexpr operator int() const { return n; }
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static const strong_ordering equal, greater, less;
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};
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constexpr strong_ordering strong_ordering::equal = {0};
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constexpr strong_ordering strong_ordering::greater = {1};
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constexpr strong_ordering strong_ordering::less = {-1};
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} // namespace std
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template <typename T>
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struct OpEqOnly {
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OpEqOnly();
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bool operator==(const OpEqOnly<T> &other) const;
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unsigned long size() const;
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bool empty() const;
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};
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template <typename T>
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struct HasSpaceshipMem {
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HasSpaceshipMem();
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bool operator<=>(const HasSpaceshipMem<T> &other) const = default;
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unsigned long size() const;
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bool empty() const;
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};
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void returnsVoid() {
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OpEqOnly<int> OEO;
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HasSpaceshipMem<int> HSM;
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if (OEO != OpEqOnly<int>())
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;
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// CHECK-MESSAGES: :[[@LINE-2]]:7: warning: the 'empty' method should be used to check for emptiness
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// CHECK-FIXES: {{^ }}if (!OEO.empty()){{$}}
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// CHECK-MESSAGES: :19:8: note: method 'OpEqOnly'::empty() defined here
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if (HSM != HasSpaceshipMem<int>())
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;
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// CHECK-MESSAGES: :[[@LINE-2]]:7: warning: the 'empty' method should be used to check for emptiness
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// CHECK-FIXES: {{^ }}if (!HSM.empty()){{$}}
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// CHECK-MESSAGES: :27:8: note: method 'HasSpaceshipMem'::empty() defined here
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}
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