如何暂时禁用 C/C++ 中的宏扩展?
出于某种原因，我需要暂时禁用头文件中的一些宏，#undef MACRONAME 将使代码编译，但它会取消现有宏的定义.
For some reason I need to temporarily disable some macros in a header file and the #undef MACRONAME will make the code compile but it will undef the existing macro.
有没有办法禁用它?
我应该提到您并不真正了解宏的值，而且我正在寻找交叉编译器解决方案(至少应该在 GCC 和 MSVC 中工作).
I should mention that you do not really know the values of the macros and that I'm looking for a cross compiler solution (should work at least in GCC and MSVC).
推荐答案
在 MSVC 中，您可以使用 push_macro pragma, GCC 支持它与 Microsoft Windows 编译器的兼容性.
In MSVC you could use push_macro pragma, GCC supports it for compatibility with Microsoft Windows compilers.
#pragma push_macro("MACRONAME")
#undef MACRONAME
// some actions
#pragma pop_macro("MACRONAME")
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