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// RUN: %check_clang_tidy %s performance-for-range-copy %t -- \
// RUN: -config="{CheckOptions: [{key: "performance-for-range-copy.WarnOnAllAutoCopies", value: 1}]}"
template <typename T>
struct Iterator {
void operator++() {}
const T& operator*() {
static T* TT = new T();
return *TT;
}
bool operator!=(const Iterator &) { return false; }
};
template <typename T>
struct View {
T begin() { return T(); }
T begin() const { return T(); }
T end() { return T(); }
T end() const { return T(); }
};
struct S {
S();
S(const S &);
~S();
S &operator=(const S &);
};
void NegativeLoopVariableNotAuto() {
for (S S1 : View<Iterator<S>>()) {
S* S2 = &S1;
}
}
void PositiveTriggeredForAutoLoopVariable() {
for (auto S1 : View<Iterator<S>>()) {
// 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]
// CHECK-FIXES: for (const auto& S1 : View<Iterator<S>>()) {
S* S2 = &S1;
}
}
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