1// RUN: %check_clang_tidy %s readability-qualified-auto %t -- -- -std=c++20
2namespace std {
3template <typename T>
4class vector { // dummy impl
5 T _data[1];
6
7public:
8 T *begin() { return _data; }
9 const T *begin() const { return _data; }
10 T *end() { return &_data[1]; }
11 const T *end() const { return &_data[1]; }
12 unsigned size() const { return 0; }
13};
14} // namespace std
15
16std::vector<int> *getVec();
17const std::vector<int> *getCVec();
18void foo() {
19 if (auto X = getVec(); X->size() > 0) {
20 // CHECK-MESSAGES: :[[@LINE-1]]:7: warning: 'auto X' can be declared as 'auto *X'
21 // CHECK-FIXES: {{^}} if (auto *X = getVec(); X->size() > 0) {
22 }
23 switch (auto X = getVec(); X->size()) {
24 // CHECK-MESSAGES: :[[@LINE-1]]:11: warning: 'auto X' can be declared as 'auto *X'
25 // CHECK-FIXES: {{^}} switch (auto *X = getVec(); X->size()) {
26 default:
27 break;
28 }
29 for (auto X = getVec(); auto Xi : *X) {
30 // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: 'auto X' can be declared as 'auto *X'
31 // CHECK-FIXES: {{^}} for (auto *X = getVec(); auto Xi : *X) {
32 }
33}
34void bar() {
35 if (auto X = getCVec(); X->size() > 0) {
36 // CHECK-MESSAGES: :[[@LINE-1]]:7: warning: 'auto X' can be declared as 'const auto *X'
37 // CHECK-FIXES: {{^}} if (const auto *X = getCVec(); X->size() > 0) {
38 }
39 switch (auto X = getCVec(); X->size()) {
40 // CHECK-MESSAGES: :[[@LINE-1]]:11: warning: 'auto X' can be declared as 'const auto *X'
41 // CHECK-FIXES: {{^}} switch (const auto *X = getCVec(); X->size()) {
42 default:
43 break;
44 }
45 for (auto X = getCVec(); auto Xi : *X) {
46 // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: 'auto X' can be declared as 'const auto *X'
47 // CHECK-FIXES: {{^}} for (const auto *X = getCVec(); auto Xi : *X) {
48 }
49}
50

source code of clang-tools-extra/test/clang-tidy/checkers/readability/qualified-auto-cxx20.cpp