| 1 | // RUN: %check_clang_tidy -check-suffix=DEFAULT %s \ |
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| 2 | // RUN: bugprone-narrowing-conversions %t -- |
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| 3 | |
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| 4 | // RUN: %check_clang_tidy -check-suffix=DISABLED %s \ |
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| 5 | // RUN: bugprone-narrowing-conversions %t -- \ |
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| 6 | // RUN: -config='{CheckOptions: { \ |
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| 7 | // RUN: bugprone-narrowing-conversions.WarnOnEquivalentBitWidth: 0}}' |
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| 8 | |
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| 9 | void narrowing_equivalent_bitwidth() { |
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| 10 | int i; |
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| 11 | unsigned int ui; |
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| 12 | i = ui; |
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| 13 | // CHECK-MESSAGES-DEFAULT: :[[@LINE-1]]:7: warning: narrowing conversion from 'unsigned int' to signed type 'int' is implementation-defined [bugprone-narrowing-conversions] |
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| 14 | // DISABLED: Warning disabled with WarnOnEquivalentBitWidth=0. |
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| 15 | |
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| 16 | float f; |
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| 17 | i = f; |
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| 18 | // CHECK-MESSAGES-DEFAULT: :[[@LINE-1]]:7: warning: narrowing conversion from 'float' to 'int' [bugprone-narrowing-conversions] |
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| 19 | // DISABLED: Warning disabled with WarnOnEquivalentBitWidth=0. |
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| 20 | |
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| 21 | f = i; |
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| 22 | // CHECK-MESSAGES-DEFAULT: :[[@LINE-1]]:7: warning: narrowing conversion from 'int' to 'float' [bugprone-narrowing-conversions] |
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| 23 | // DISABLED: Warning disabled with WarnOnEquivalentBitWidth=0. |
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| 24 | |
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| 25 | long long ll; |
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| 26 | double d; |
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| 27 | ll = d; |
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| 28 | // CHECK-MESSAGES-DEFAULT: :[[@LINE-1]]:8: warning: narrowing conversion from 'double' to 'long long' [bugprone-narrowing-conversions] |
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| 29 | // DISABLED: Warning disabled with WarnOnEquivalentBitWidth=0. |
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| 30 | |
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| 31 | d = ll; |
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| 32 | // CHECK-MESSAGES-DEFAULT: :[[@LINE-1]]:7: warning: narrowing conversion from 'long long' to 'double' [bugprone-narrowing-conversions] |
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| 33 | // DISABLED: Warning disabled with WarnOnEquivalentBitWidth=0. |
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| 34 | } |
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| 35 | |
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| 36 | void most_narrowing_is_not_ok() { |
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| 37 | int i; |
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| 38 | long long ui; |
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| 39 | i = ui; |
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| 40 | // CHECK-MESSAGES-DEFAULT: :[[@LINE-1]]:7: warning: narrowing conversion from 'long long' to signed type 'int' is implementation-defined [bugprone-narrowing-conversions] |
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| 41 | // CHECK-MESSAGES-DISABLED: :[[@LINE-2]]:7: warning: narrowing conversion from 'long long' to signed type 'int' is implementation-defined [bugprone-narrowing-conversions] |
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| 42 | } |
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| 43 | |
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