Macro Pitfalls

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In this section we describe some special rules that apply to macros and macro expansion, and point out certain cases in which the rules have counter-intuitive consequences that you must watch out for.

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• Misnesting ::
• Operator Precedence Problems ::
• Swallowing the Semicolon ::
• Duplication of Side Effects ::
• Self-Referential Macros ::
• Argument Prescan ::
• Newlines in Arguments ::