WebThis is true even if the macro encloses the parameters in parentheses to prevent expansion from breaking anything. int oops = 5; double incremental_damage = AREA (oops++); // Compiler sees: double incremental_damage = … WebNov 27, 2024 · 但是，出现编译器错误： error:"*" may not appear in macro parameter list 我只是好奇如果删除" *"会发生什么，这会导致错误"宏参数必须用逗号分隔"。 关于我在这里做错的任何想法吗？ 据我所知，至少在C语言中，没有键入宏参数。 全部是符号替换。 只需使用 pReporter 而不是 Reporter * pReporter 或 Reporter pReporter 。 (我想您的宏的其 …

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WebHowever, it is an error if ‘ ## ’ appears at either end of a macro body. Consider a C program that interprets named commands. There probably needs to be a table of commands, perhaps an array of structures declared as follows: struct command { char *name; void (*function) (void); }; WebGenerally speaking, the solution is to turn that inside out: use conditional directives to define the macro differently in different cases. That will not work for a generic macro-test … shanghai shuffle glasgow

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WebC Macro expansion not working as expected -- getting below error main.c:11:19: error: expected identifier before ‘ (’ token Macro argument is not expanded instead gives … Webmacro (array[x = y, x + 1]) passes two arguments to macro: array[x = yand x + 1]. If you want to supply array[x = y, x + 1]as an argument, you can write it as array[(x = y, x + 1)], … shanghai shuffle fletcher henderson