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108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
// RUN: %check_clang_tidy %s modernize-use-transparent-functors %t -- -- -std=c++14
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namespace std {
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template<class T>
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struct remove_reference;
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template <class T>
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constexpr T &&forward(typename std::remove_reference<T>::type &t);
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template <class T>
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constexpr T &&forward(typename std::remove_reference<T>::type &&t);
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template <typename T = void>
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struct plus {
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constexpr T operator()(const T &Lhs, const T &Rhs) const;
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};
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template <>
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struct plus<void> {
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template <typename T, typename U>
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constexpr auto operator()(T &&Lhs, U &&Rhs) const ->
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decltype(forward<T>(Lhs) + forward<U>(Rhs));
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};
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template <typename T = void>
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struct less {
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constexpr bool operator()(const T &Lhs, const T &Rhs) const;
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};
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template <>
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struct less<void> {
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template <typename T, typename U>
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constexpr bool operator()(T &&Lhs, U &&Rhs) const;
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};
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template <typename T = void>
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struct logical_not {
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constexpr bool operator()(const T &Arg) const;
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};
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template <>
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struct logical_not<void> {
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template <typename T>
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constexpr bool operator()(T &&Arg) const;
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};
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template <typename T>
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class allocator;
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template <
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class Key,
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class Compare = std::less<>,
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class Allocator = std::allocator<Key>>
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class set {};
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template <
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class Key,
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class Compare = std::less<Key>,
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class Allocator = std::allocator<Key>>
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class set2 {};
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template <class InputIt, class UnaryPredicate>
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InputIt find_if(InputIt first, InputIt last,
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UnaryPredicate p);
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template <class RandomIt, class Compare>
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void sort(RandomIt first, RandomIt last, Compare comp);
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class iterator {};
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class string {};
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}
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int main() {
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using std::set;
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using std::less;
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std::set<int, std::less<int>> s;
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// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: prefer transparent functors 'less<>' [modernize-use-transparent-functors]
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// CHECK-FIXES: {{^}} std::set<int, std::less<>> s;{{$}}
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set<int, std::less<int>> s2;
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: prefer transparent functors
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// CHECK-FIXES: {{^}} set<int, std::less<>> s2;{{$}}
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set<int, less<int>> s3;
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: prefer transparent functors
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// CHECK-FIXES: {{^}} set<int, less<>> s3;{{$}}
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std::set<int, std::less<>> s4;
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std::set<char *, std::less<std::string>> s5;
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std::set<set<int, less<int>>, std::less<>> s6;
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// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: prefer transparent functors
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// CHECK-FIXES: {{^}} std::set<set<int, less<>>, std::less<>> s6;{{$}}
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std::iterator begin, end;
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sort(begin, end, std::less<int>());
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// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: prefer transparent functors
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std::sort(begin, end, std::less<>());
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find_if(begin, end, std::logical_not<bool>());
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// CHECK-MESSAGES: :[[@LINE-1]]:23: warning: prefer transparent functors
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std::find_if(begin, end, std::logical_not<>());
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using my_set = std::set<int, std::less<int>>;
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// CHECK-MESSAGES: :[[@LINE-1]]:32: warning: prefer transparent functors
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// CHECK-FIXES: {{^}} using my_set = std::set<int, std::less<>>;{{$}}
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using my_set2 = std::set<char*, std::less<std::string>>;
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using my_less = std::less<std::string>;
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find_if(begin, end, my_less());
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// CHECK-MESSAGES: :[[@LINE-1]]:23: warning: prefer transparent functors
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std::set2<int> control;
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}
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