如何抑制#define本地？ [英] How to suppress #define locally?

问题描述

刚刚抓到一个蠢的bug。我有一个带有 CreateFile（）函数的zip处理库。 Winbase.h ，包含在我的头部深处，重新定义为 CreateFileW

当然，在这种情况下，我将排除 winbase 。它只是不应该在范围内的第一位。但是理论问题仍然很有趣，

有没有办法抑制一些本地定义？

解决方案

删除令人讨厌的头文件是最好的解决方案（特别是 windows.h 或 .h - 它们包含的太多了，我的口味在许多项目）。

唯一的其他解决方案是 #undef offending_symbol 。

当然，另一个重要的事情是不要使用匹配Windows / Linux系统调用名称的名称 - 但 CreateFile 是一个非常明显的名称，一个文件，所以我可以看到诱惑。

Just caught a silly bug. I have a zip processing library with a CreateFile() function in it. Winbase.h, included somewhere deep in my headers, redefines it as CreateFileW and linker goes nuts.

Of course I will exclude winbase in this particular case. It just shouldn't be in the scope in the first place. But the theoretical question is still interesting,

Is there a way to suppress some defines locally?

解决方案

Removing the offending header file is ALWAYS the best solution for this (especially one as large as windows.h or winbase.h - they are included far too freely for my taste in many projects).

The only other solution is #undef offending_symbol.

Of course, another important thing is "do not use names that match the Windows/Linux system call names" - but CreateFile is a very obvious name for a function that creates a file, so I can see the temptation.

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