forked from OSchip/llvm-project
40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
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// RUN: %check_clang_tidy %s performance-for-range-copy %t -config="{CheckOptions: [{key: "performance-for-range-copy.WarnOnAllAutoCopies", value: 1}]}" -- -std=c++11
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template <typename T>
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struct Iterator {
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void operator++() {}
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const T& operator*() {
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static T* TT = new T();
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return *TT;
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}
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bool operator!=(const Iterator &) { return false; }
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};
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template <typename T>
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struct View {
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T begin() { return T(); }
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T begin() const { return T(); }
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T end() { return T(); }
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T end() const { return T(); }
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};
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struct S {
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S();
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S(const S &);
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~S();
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S &operator=(const S &);
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};
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void NegativeLoopVariableNotAuto() {
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for (S S1 : View<Iterator<S>>()) {
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S* S2 = &S1;
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}
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}
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void PositiveTriggeredForAutoLoopVariable() {
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for (auto S1 : View<Iterator<S>>()) {
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// CHECK-MESSAGES: [[@LINE-1]]:13: warning: the loop variable's type is not a reference type; this creates a copy in each iteration; consider making this a reference [performance-for-range-copy]
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// CHECK-FIXES: for (const auto& S1 : View<Iterator<S>>()) {
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S* S2 = &S1;
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}
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}
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