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