C++ 如何停止 IntelliSense PCH 警告？
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How do I stop an IntelliSense PCH Warning?
提问by NobleUplift
A few of my header files have no includes, so I receive this message in Visual Studio 2010:
我的一些头文件没有包含，所以我在 Visual Studio 2010 中收到了这条消息：
IntelliSense: PCH warning: cannot find a suitable header stop location. An intellisense PCH file was not generated.
If I add a single header, for instance:
如果我添加单个标题，例如：
#include <iostream>
It disappears. How can I stop this error from showing without adding (potentially unused) include>
它消失了。如何在不添加（可能未使用）的情况下阻止此错误显示>
采纳答案by tatigo
When adding a .cpp file it inherits the PCH settings of the project. More detailed explanation of the problem here
添加 .cpp 文件时，它会继承项目的 PCH 设置。更详细的问题解释here
Solutions:
解决方案：
- Add
#pragma onceat the start of the file.
#pragma once在文件开头添加。
It will cause your source file to be included only once in a single compilation, therefore the compiler will be satisfied and won't require additional #include
它会导致你的源文件在一次编译中只包含一次，因此编译器会满意并且不需要额外的 #include
- Setting your project to not use precompiled headers
- Disable PCH usage for that one cpp file you've added, which will clear both IntelliSense and compiler warning/error.
- 将您的项目设置为不使用预编译头文件
- 为您添加的那个 cpp 文件禁用 PCH 使用，这将清除 IntelliSense 和编译器警告/错误。
Note! I'm including num 2, and 3 because some say it helped, but it only num 1 that did solve my case.
笔记！我包括 num 2 和 3，因为有人说它有帮助，但只有 num 1 确实解决了我的问题。
回答by Serid
I suppose the problem is that you have precompiled header in your project (by default "stdafx.h") and to correctly solve the problem you should add
我想问题是您的项目中有预编译的头文件（默认情况下为“stdafx.h”）并且要正确解决您应该添加的问题
#include "stdafx.h"
at start of your header/source file.
在头文件/源文件的开头。
回答by Natasha
Go to project's property and under C/C++ => Precompiled Headers, find the option "Precompiled header".
转到项目的属性并在C/C++ => Precompiled Headers 下，找到选项“Precompiled header”。
Change it to "Not Using Precompiled Headers".
将其更改为“不使用预编译头”。
