| 1 | // RUN: %check_clang_tidy %s readability-redundant-string-init %t |
|---|
| 2 | |
|---|
| 3 | namespace std { |
|---|
| 4 | template <typename T> |
|---|
| 5 | class allocator {}; |
|---|
| 6 | template <typename T> |
|---|
| 7 | class char_traits {}; |
|---|
| 8 | template <typename C, typename T = std::char_traits<C>, typename A = std::allocator<C>> |
|---|
| 9 | struct basic_string { |
|---|
| 10 | basic_string(); |
|---|
| 11 | basic_string(const basic_string&); |
|---|
| 12 | // MSVC headers define two constructors instead of using optional arguments. |
|---|
| 13 | basic_string(const C *); |
|---|
| 14 | basic_string(const C *, const A &); |
|---|
| 15 | ~basic_string(); |
|---|
| 16 | }; |
|---|
| 17 | typedef basic_string<char> string; |
|---|
| 18 | typedef basic_string<wchar_t> wstring; |
|---|
| 19 | } |
|---|
| 20 | |
|---|
| 21 | void f() { |
|---|
| 22 | std::string a = "" ; |
|---|
| 23 | // CHECK-MESSAGES: [[@LINE-1]]:15: warning: redundant string initialization [readability-redundant-string-init] |
|---|
| 24 | // CHECK-FIXES: std::string a; |
|---|
| 25 | std::string b("" ); |
|---|
| 26 | // CHECK-MESSAGES: [[@LINE-1]]:15: warning: redundant string initialization |
|---|
| 27 | // CHECK-FIXES: std::string b; |
|---|
| 28 | std::string c = R"()" ; |
|---|
| 29 | // CHECK-MESSAGES: [[@LINE-1]]:15: warning: redundant string initialization |
|---|
| 30 | // CHECK-FIXES: std::string c; |
|---|
| 31 | std::string d(R"()" ); |
|---|
| 32 | // CHECK-MESSAGES: [[@LINE-1]]:15: warning: redundant string initialization |
|---|
| 33 | // CHECK-FIXES: std::string d; |
|---|
| 34 | |
|---|
| 35 | std::string u = "u" ; |
|---|
| 36 | std::string w("w" ); |
|---|
| 37 | std::string x = R"(x)" ; |
|---|
| 38 | std::string y(R"(y)" ); |
|---|
| 39 | std::string z; |
|---|
| 40 | } |
|---|
| 41 | |
|---|
| 42 | void g() { |
|---|
| 43 | std::wstring a = L"" ; |
|---|
| 44 | // CHECK-MESSAGES: [[@LINE-1]]:16: warning: redundant string initialization |
|---|
| 45 | // CHECK-FIXES: std::wstring a; |
|---|
| 46 | std::wstring b(L"" ); |
|---|
| 47 | // CHECK-MESSAGES: [[@LINE-1]]:16: warning: redundant string initialization |
|---|
| 48 | // CHECK-FIXES: std::wstring b; |
|---|
| 49 | std::wstring c = LR"()" ; |
|---|
| 50 | // CHECK-MESSAGES: [[@LINE-1]]:16: warning: redundant string initialization |
|---|
| 51 | // CHECK-FIXES: std::wstring c; |
|---|
| 52 | std::wstring d(LR"()" ); |
|---|
| 53 | // CHECK-MESSAGES: [[@LINE-1]]:16: warning: redundant string initialization |
|---|
| 54 | // CHECK-FIXES: std::wstring d; |
|---|
| 55 | |
|---|
| 56 | std::wstring u = L"u" ; |
|---|
| 57 | std::wstring w(L"w" ); |
|---|
| 58 | std::wstring x = LR"(x)" ; |
|---|
| 59 | std::wstring y(LR"(y)" ); |
|---|
| 60 | std::wstring z; |
|---|
| 61 | } |
|---|
| 62 | |
|---|
