readability-qualified-auto-cxx20.cpp
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// RUN: %check_clang_tidy %s readability-qualified-auto %t -- -- -std=c++20
namespace std {
template <typename T>
class vector { // dummy impl
T _data[1];
public:
T *begin() { return _data; }
const T *begin() const { return _data; }
T *end() { return &_data[1]; }
const T *end() const { return &_data[1]; }
unsigned size() const { return 0; }
};
} // namespace std
std::vector<int> *getVec();
const std::vector<int> *getCVec();
void foo() {
if (auto X = getVec(); X->size() > 0) {
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: 'auto X' can be declared as 'auto *X'
// CHECK-FIXES: {{^}} if (auto *X = getVec(); X->size() > 0) {
}
switch (auto X = getVec(); X->size()) {
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: 'auto X' can be declared as 'auto *X'
// CHECK-FIXES: {{^}} switch (auto *X = getVec(); X->size()) {
default:
break;
}
for (auto X = getVec(); auto Xi : *X) {
// CHECK-MESSAGES: :[[@LINE-1]]:8: warning: 'auto X' can be declared as 'auto *X'
// CHECK-FIXES: {{^}} for (auto *X = getVec(); auto Xi : *X) {
}
}
void bar() {
if (auto X = getCVec(); X->size() > 0) {
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: 'auto X' can be declared as 'const auto *X'
// CHECK-FIXES: {{^}} if (const auto *X = getCVec(); X->size() > 0) {
}
switch (auto X = getCVec(); X->size()) {
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: 'auto X' can be declared as 'const auto *X'
// CHECK-FIXES: {{^}} switch (const auto *X = getCVec(); X->size()) {
default:
break;
}
for (auto X = getCVec(); auto Xi : *X) {
// CHECK-MESSAGES: :[[@LINE-1]]:8: warning: 'auto X' can be declared as 'const auto *X'
// CHECK-FIXES: {{^}} for (const auto *X = getCVec(); auto Xi : *X) {
}
}