| 1 | // RUN: %check_clang_tidy %s bugprone-unintended-char-ostream-output %t -- \ |
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| 2 | // RUN: -config="{CheckOptions: \ |
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| 3 | // RUN: {bugprone-unintended-char-ostream-output.CastTypeName: \"unsigned char\"}}" |
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| 4 | |
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| 5 | namespace std { |
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| 6 | |
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| 7 | template <class _CharT, class _Traits = void> class basic_ostream { |
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| 8 | public: |
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| 9 | basic_ostream &operator<<(int); |
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| 10 | basic_ostream &operator<<(unsigned int); |
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| 11 | }; |
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| 12 | |
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| 13 | template <class CharT, class Traits> |
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| 14 | basic_ostream<CharT, Traits> &operator<<(basic_ostream<CharT, Traits> &, CharT); |
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| 15 | template <class CharT, class Traits> |
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| 16 | basic_ostream<CharT, Traits> &operator<<(basic_ostream<CharT, Traits> &, char); |
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| 17 | template <class _Traits> |
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| 18 | basic_ostream<char, _Traits> &operator<<(basic_ostream<char, _Traits> &, char); |
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| 19 | template <class _Traits> |
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| 20 | basic_ostream<char, _Traits> &operator<<(basic_ostream<char, _Traits> &, |
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| 21 | signed char); |
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| 22 | template <class _Traits> |
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| 23 | basic_ostream<char, _Traits> &operator<<(basic_ostream<char, _Traits> &, |
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| 24 | unsigned char); |
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| 25 | |
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| 26 | using ostream = basic_ostream<char>; |
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| 27 | |
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| 28 | } // namespace std |
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| 29 | |
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| 30 | using uint8_t = unsigned char; |
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| 31 | using int8_t = signed char; |
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| 32 | |
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| 33 | void origin_ostream(std::ostream &os) { |
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| 34 | uint8_t unsigned_value = 9; |
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| 35 | os << unsigned_value; |
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| 36 | // CHECK-MESSAGES: [[@LINE-1]]:6: warning: 'uint8_t' (aka 'unsigned char') passed to 'operator<<' outputs as character instead of integer |
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| 37 | // CHECK-FIXES: os << static_cast<unsigned char>(unsigned_value); |
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| 38 | |
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| 39 | int8_t signed_value = 9; |
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| 40 | os << signed_value; |
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| 41 | // CHECK-MESSAGES: [[@LINE-1]]:6: warning: 'int8_t' (aka 'signed char') passed to 'operator<<' outputs as character instead of integer |
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| 42 | // CHECK-FIXES: os << static_cast<unsigned char>(signed_value); |
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| 43 | |
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| 44 | char char_value = 9; |
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| 45 | os << char_value; |
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| 46 | } |
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| 47 | |
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