2015-12-23 01:36:49 +08:00
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.. title:: clang-tidy - misc-macro-parentheses
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2015-08-28 02:10:07 +08:00
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misc-macro-parentheses
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======================
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Finds macros that can have unexpected behaviour due to missing parentheses.
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Macros are expanded by the preprocessor as-is. As a result, there can be
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unexpected behaviour; operators may be evaluated in unexpected order and
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unary operators may become binary operators, etc.
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When the replacement list has an expression, it is recommended to surround
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it with parentheses. This ensures that the macro result is evaluated
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completely before it is used.
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It is also recommended to surround macro arguments in the replacement list
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with parentheses. This ensures that the argument value is calculated
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properly.
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