40 lines · cpp
1// RUN: %check_clang_tidy %s cppcoreguidelines-pro-type-member-init,hicpp-member-init,modernize-use-emplace,hicpp-use-emplace %t2 3namespace std {4 5template <typename T>6class vector {7public:8 void push_back(const T &) {}9 void push_back(T &&) {}10 11 template <typename... Args>12 void emplace_back(Args &&... args){};13};14} // namespace std15 16class Foo {17public:18 Foo() : _num1(0)19 // CHECK-MESSAGES: warning: constructor does not initialize these fields: _num2 [cppcoreguidelines-pro-type-member-init,hicpp-member-init]20 {21 _num1 = 10;22 }23 24 int use_the_members() const {25 return _num1 + _num2;26 }27 28private:29 int _num1;30 int _num2;31 // CHECK-FIXES: int _num2{};32};33 34void should_use_emplace(std::vector<Foo> &v) {35 v.push_back(Foo());36 // CHECK-FIXES: v.emplace_back();37 // CHECK-MESSAGES: warning: use emplace_back instead of push_back [hicpp-use-emplace,modernize-use-emplace]38}39 40