| 1 | // RUN: %check_clang_tidy %s cppcoreguidelines-macro-usage -std=c++17-or-later %t -- -header-filter=.* -system-headers -- |
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| 2 | |
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| 3 | #ifndef INCLUDE_GUARD |
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| 4 | #define INCLUDE_GUARD |
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| 5 | |
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| 6 | #define PROBLEMATIC_CONSTANT 0 |
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| 7 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: macro 'PROBLEMATIC_CONSTANT' used to declare a constant; consider using a 'constexpr' constant |
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| 8 | |
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| 9 | #define PROBLEMATIC_CONSTANT_CHAR '0' |
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| 10 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: macro 'PROBLEMATIC_CONSTANT_CHAR' used to declare a constant; consider using a 'constexpr' constant |
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| 11 | |
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| 12 | #define PROBLEMATIC_CONSTANT_WIDE_CHAR L'0' |
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| 13 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: macro 'PROBLEMATIC_CONSTANT_WIDE_CHAR' used to declare a constant; consider using a 'constexpr' constant |
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| 14 | |
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| 15 | #define PROBLEMATIC_CONSTANT_UTF8_CHAR u8'0' |
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| 16 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: macro 'PROBLEMATIC_CONSTANT_UTF8_CHAR' used to declare a constant; consider using a 'constexpr' constant |
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| 17 | |
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| 18 | #define PROBLEMATIC_CONSTANT_UTF16_CHAR u'0' |
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| 19 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: macro 'PROBLEMATIC_CONSTANT_UTF16_CHAR' used to declare a constant; consider using a 'constexpr' constant |
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| 20 | |
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| 21 | #define PROBLEMATIC_CONSTANT_UTF32_CHAR U'0' |
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| 22 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: macro 'PROBLEMATIC_CONSTANT_UTF32_CHAR' used to declare a constant; consider using a 'constexpr' constant |
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| 23 | |
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| 24 | #define PROBLEMATIC_FUNCTION(x, y) ((a) > (b) ? (a) : (b)) |
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| 25 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: function-like macro 'PROBLEMATIC_FUNCTION' used; consider a 'constexpr' template function |
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| 26 | |
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| 27 | #define PROBLEMATIC_VARIADIC(...) (__VA_ARGS__) |
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| 28 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: variadic macro 'PROBLEMATIC_VARIADIC' used; consider using a 'constexpr' variadic template function |
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| 29 | |
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| 30 | #define PROBLEMATIC_VARIADIC2(x, ...) (__VA_ARGS__) |
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| 31 | // CHECK-MESSAGES: [[@LINE-1]]:9: warning: variadic macro 'PROBLEMATIC_VARIADIC2' used; consider using a 'constexpr' variadic template function |
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| 32 | |
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| 33 | // These are all examples of common macros that shouldn't have constexpr suggestions. |
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| 34 | #define COMMA , |
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| 35 | |
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| 36 | #define NORETURN [[noreturn]] |
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| 37 | |
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| 38 | #define DEPRECATED attribute((deprecated)) |
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| 39 | |
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| 40 | #if LIB_EXPORTS |
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| 41 | #define DLLEXPORTS __declspec(dllexport) |
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| 42 | #else |
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| 43 | #define DLLEXPORTS __declspec(dllimport) |
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| 44 | #endif |
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| 45 | |
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| 46 | #endif |
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| 47 | |
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