forked from OSchip/llvm-project
86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
// RUN: %check_clang_tidy %s bugprone-string-literal-with-embedded-nul %t
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namespace std {
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template <typename T>
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class allocator {};
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template <typename T>
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class char_traits {};
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template <typename C, typename T, typename A>
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struct basic_string {
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typedef basic_string<C, T, A> _Type;
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basic_string();
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basic_string(const C *p, const A &a = A());
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_Type& operator+=(const C* s);
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_Type& operator=(const C* s);
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};
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typedef basic_string<char, std::char_traits<char>, std::allocator<char>> string;
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typedef basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t>> wstring;
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}
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bool operator==(const std::string&, const char*);
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bool operator==(const char*, const std::string&);
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const char Valid[] = "This is valid \x12.";
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const char Strange[] = "This is strange \0x12 and must be fixed";
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// CHECK-MESSAGES: :[[@LINE-1]]:24: warning: suspicious embedded NUL character [bugprone-string-literal-with-embedded-nul]
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const char textA[] = "\0x01\0x02\0x03\0x04";
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// CHECK-MESSAGES: :[[@LINE-1]]:22: warning: suspicious embedded NUL character
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const wchar_t textW[] = L"\0x01\0x02\0x03\0x04";
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// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: suspicious embedded NUL character
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const char A[] = "\0";
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const char B[] = "\0x";
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const char C[] = "\0x1";
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const char D[] = "\0x11";
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// CHECK-MESSAGES: :[[@LINE-1]]:18: warning: suspicious embedded NUL character
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const wchar_t E[] = L"\0";
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const wchar_t F[] = L"\0x";
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const wchar_t G[] = L"\0x1";
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const wchar_t H[] = L"\0x11";
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// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: suspicious embedded NUL character
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const char I[] = "\000\000\000\000";
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const char J[] = "\0\0\0\0\0\0";
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const char K[] = "";
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const char L[] = "\0x12" "\0x12" "\0x12" "\0x12";
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// CHECK-MESSAGES: :[[@LINE-1]]:18: warning: suspicious embedded NUL character
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void TestA() {
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std::string str1 = "abc\0def";
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// CHECK-MESSAGES: :[[@LINE-1]]:22: warning: truncated string literal
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std::string str2 = "\0";
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// CHECK-MESSAGES: :[[@LINE-1]]:22: warning: truncated string literal
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std::string str3("\0");
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// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: truncated string literal
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std::string str4{"\x00\x01\x02\x03"};
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// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: truncated string literal
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std::string str;
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str += "abc\0def";
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: truncated string literal
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str = "abc\0def";
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// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: truncated string literal
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if (str == "abc\0def") return;
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// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: truncated string literal
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if ("abc\0def" == str) return;
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// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: truncated string literal
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}
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void TestW() {
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std::wstring str1 = L"abc\0def";
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// CHECK-MESSAGES: :[[@LINE-1]]:23: warning: truncated string literal
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std::wstring str2 = L"\0";
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// CHECK-MESSAGES: :[[@LINE-1]]:23: warning: truncated string literal
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std::wstring str3(L"\0");
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// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: truncated string literal
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std::wstring str4{L"\x00\x01\x02\x03"};
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// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: truncated string literal
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}
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