diff options
Diffstat (limited to 'clang-tools-extra/test/clang-tidy/performance-inefficient-algorithm.cpp')
-rw-r--r-- | clang-tools-extra/test/clang-tidy/performance-inefficient-algorithm.cpp | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/clang-tools-extra/test/clang-tidy/performance-inefficient-algorithm.cpp b/clang-tools-extra/test/clang-tidy/performance-inefficient-algorithm.cpp deleted file mode 100644 index aa4e30d6f3f..00000000000 --- a/clang-tools-extra/test/clang-tidy/performance-inefficient-algorithm.cpp +++ /dev/null @@ -1,167 +0,0 @@ -// RUN: %check_clang_tidy -std=c++11,c++14 %s performance-inefficient-algorithm %t -// FIXME: Fix the checker to work in C++17 mode. - -namespace std { -template <typename T> struct less { - bool operator()(const T &lhs, const T &rhs) { return lhs < rhs; } -}; - -template <typename T> struct greater { - bool operator()(const T &lhs, const T &rhs) { return lhs > rhs; } -}; - -struct iterator_type {}; - -template <typename K, typename Cmp = less<K>> struct set { - typedef iterator_type iterator; - iterator find(const K &k); - unsigned count(const K &k); - - iterator begin(); - iterator end(); - iterator begin() const; - iterator end() const; -}; - -struct other_iterator_type {}; - -template <typename K, typename V, typename Cmp = less<K>> struct map { - typedef other_iterator_type iterator; - iterator find(const K &k); - unsigned count(const K &k); - - iterator begin(); - iterator end(); - iterator begin() const; - iterator end() const; -}; - -template <typename K, typename V> struct multimap : map<K, V> {}; -template <typename K> struct unordered_set : set<K> {}; -template <typename K, typename V> struct unordered_map : map<K, V> {}; -template <typename K> struct unordered_multiset : set<K> {}; -template <typename K, typename V> struct unordered_multimap : map<K, V> {}; - -template <typename K, typename Cmp = less<K>> struct multiset : set<K, Cmp> {}; - -template <typename FwIt, typename K> -FwIt find(FwIt, FwIt end, const K &) { return end; } - -template <typename FwIt, typename K, typename Cmp> -FwIt find(FwIt, FwIt end, const K &, Cmp) { return end; } - -template <typename FwIt, typename Pred> -FwIt find_if(FwIt, FwIt end, Pred) { return end; } - -template <typename FwIt, typename K> -unsigned count(FwIt, FwIt, const K &) { return 0; } - -template <typename FwIt, typename K> -FwIt lower_bound(FwIt, FwIt end, const K &) { return end; } - -template <typename FwIt, typename K, typename Ord> -FwIt lower_bound(FwIt, FwIt end, const K &, Ord) { return end; } -} - -#define FIND_IN_SET(x) find(x.begin(), x.end(), 10) -// CHECK-FIXES: #define FIND_IN_SET(x) find(x.begin(), x.end(), 10) - -template <typename T> void f(const T &t) { - std::set<int> s; - find(s.begin(), s.end(), 46); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}s.find(46);{{$}} - - find(t.begin(), t.end(), 46); - // CHECK-FIXES: {{^ }}find(t.begin(), t.end(), 46);{{$}} -} - -int main() { - std::set<int> s; - auto it = std::find(s.begin(), s.end(), 43); - // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: this STL algorithm call should be replaced with a container method [performance-inefficient-algorithm] - // CHECK-FIXES: {{^ }}auto it = s.find(43);{{$}} - auto c = count(s.begin(), s.end(), 43); - // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}auto c = s.count(43);{{$}} - -#define SECOND(x, y, z) y - SECOND(q,std::count(s.begin(), s.end(), 22),w); - // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}SECOND(q,s.count(22),w);{{$}} - - it = find_if(s.begin(), s.end(), [](int) { return false; }); - - std::multiset<int> ms; - find(ms.begin(), ms.end(), 46); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}ms.find(46);{{$}} - - const std::multiset<int> &msref = ms; - find(msref.begin(), msref.end(), 46); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}msref.find(46);{{$}} - - std::multiset<int> *msptr = &ms; - find(msptr->begin(), msptr->end(), 46); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}msptr->find(46);{{$}} - - it = std::find(s.begin(), s.end(), 43, std::greater<int>()); - // CHECK-MESSAGES: :[[@LINE-1]]:42: warning: different comparers used in the algorithm and the container [performance-inefficient-algorithm] - - FIND_IN_SET(s); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}FIND_IN_SET(s);{{$}} - - f(s); - - std::unordered_set<int> us; - lower_bound(us.begin(), us.end(), 10); - // CHECK-FIXES: {{^ }}lower_bound(us.begin(), us.end(), 10);{{$}} - find(us.begin(), us.end(), 10); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}us.find(10);{{$}} - - std::unordered_multiset<int> ums; - find(ums.begin(), ums.end(), 10); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}ums.find(10);{{$}} - - std::map<int, int> intmap; - find(intmap.begin(), intmap.end(), 46); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}find(intmap.begin(), intmap.end(), 46);{{$}} - - std::multimap<int, int> intmmap; - find(intmmap.begin(), intmmap.end(), 46); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}find(intmmap.begin(), intmmap.end(), 46);{{$}} - - std::unordered_map<int, int> umap; - find(umap.begin(), umap.end(), 46); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}find(umap.begin(), umap.end(), 46);{{$}} - - std::unordered_multimap<int, int> ummap; - find(ummap.begin(), ummap.end(), 46); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}find(ummap.begin(), ummap.end(), 46);{{$}} -} - -struct Value { - int value; -}; - -struct Ordering { - bool operator()(const Value &lhs, const Value &rhs) const { - return lhs.value < rhs.value; - } - bool operator()(int lhs, const Value &rhs) const { return lhs < rhs.value; } -}; - -void g(std::set<Value, Ordering> container, int value) { - lower_bound(container.begin(), container.end(), value, Ordering()); - // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this STL algorithm call should be - // CHECK-FIXES: {{^ }}lower_bound(container.begin(), container.end(), value, Ordering());{{$}} -} |