如何检测未使用的宏定义与放大器;类型定义？ [英] How do I detect unused macro definitions & typedefs?

问题描述

可以很容易地获取列表未使用的函数和变量与接头的反馈，但我怎么能检测到那些未使用的宏定义与放大器;类型定义？我一定要浏览线和git的grep的code线在整个项目？

It's easy to get a list unused functions and variables with linker feedback, but how can I detect those unused macro definitions & typedefs? Do I have to browse the code line by line and git grep in the whole project?

推荐答案

C和C ++程序静态分析工具可能包括未使用的preprocessor宏的检查。

Static analysis tools for C and C++ programs may include a check on unused preprocessor macros.

比如看 PC - 皮棉。

另一种可能性是进入具体包括文件，并使用#IFDEF 0删除宏大段，然后再检查使用的一种鸿沟的编译器错误而治之算法。不过，我会期望一个静态分析工具将是更好的方法为源$ C ​​$ C尺寸变大。

Another possibility would be to go into specific include files and use #ifdef 0 to remove large sections of macros and then review the compiler errors using a kind of divide and conquer algorithm. However I would expect that a static analysis tool would be much better approach as the source code size becomes large.

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