问题描述
限时送ChatGPT账号..我有 MyClass.cpp 和 MyClass.h 文件.由于 MyClass.cpp 有 #include "MyClass.h" 我把 stdafx.h 放到 MyClass.h.在编译过程中出现错误:
I have MyClass.cpp and MyClass.h files. Since MyClass.cpp has #include "MyClass.h" I put stdafx.h to MyClass.h. During compile I got error:
在查找预编译头时出现意外的文件结尾.您是否忘记将#includestdafx.h""添加到您的源代码中?
unexpected end of file while looking for precompiled header. Did you forget to add '#include "stdafx.h"' to your source?
为什么?如果 MyClass.cpp 包含 MyClass.h 它应该包含 MyClass.h 的所有行并且这些行包含 stdafx.h.
Why? If MyClass.cpp includes MyClass.h it should include all lines of MyClass.h and these lines contain stdafx.h.
推荐答案
是否将 #include "stdafx.h" 放在 .h 文件中并不重要.编译器不在乎.它希望将 #include "stdafx.h" 视为 .cpp 文件的第一行，除非您将不使用预编译头"作为源文件的编译器选项.推理有与预编译头有关.我无法真正提供技术性解释，但简单地这样做会让生活更轻松.
It doesn't matter if you put #include "stdafx.h" inside your .h file. The compiler doesn't care. It wants to see #include "stdafx.h" as the first line of your .cpp file, unless you have "Not using precompiled headers" as a compiler option for your source file.. The reasoning has to do with precompiled headers. I cannot really offer a technical explanation, but simply doing it that way will make life easier.
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