如何为C ++智能感知引擎定义宏? [英] How can I define macros for the C++ intellisense engine?

问题描述

使用"Default"智能感知引擎时，我的C ++项目中的某些符号无法解析.事实证明，这是因为它们位于标头中，并由#ifdef保护，而#ifdef取决于makefile通过-D标志传递给gcc的宏.我如何才能告诉智能感知引擎这些定义，以便它能够编译标头的那些部分?

When using the "Default" intellisense engine, some of the symbols in my C++ project cannot be resolved. It turns out that it's because they are in headers where they are guarded by an #ifdef that depends on a macro passed to gcc with the -D flag by the makefile. How can I tell the intellisense engine about these defines so that it is able to compile those parts of the header?

推荐答案

项目生成文件defines在.vscode/c_cpp_properties.json中设置.

Project makefile defines are set in .vscode/c_cpp_properties.json.

"configurations": [
{
   ...
   "defines":[
       "MYSYMBOL",
       "MYVALUE=1"
   ]
}
], ...

以下是一些打开c_cpp_properties.json的方法:

Here are some methods to open c_cpp_properties.json:

1. 在诸如Intellisense无法解析的include语句之类的内容上找到绿色的花体.将鼠标悬停并单击出现的灯泡(它很小，需要单击一些游戏).它将在编辑器中打开项目配置文件.

1. Find a green squiggle on something like an include statement that Intellisense can't resolve. Hover around and click the lightbulb that appears (which is tiny and a bit of a game to click). It will open the project config file in the editor.

与上述相同，但将光标放在绿色的花体线条上，然后按Ctrl + ..

Same as above, but put cursor on the green squiggle line and press Ctrl+..

使用命令托盘:ctrl + shift + P，然后选择C/C++: Edit configurations (JSON).

Use the command pallet: ctrl+shift+P, then select C/C++: Edit configurations (JSON).

如果您的.vscode文件夹中已经存在该文件，请使用File-> Open打开它.

If the file already exists in your .vscode folder, open it with File->Open.

尽管在修改c_cpp_properties.json之后，vscode将重新处理设置，但我发现在更改值时有时需要重新启动.

Although vscode will reprocess the settings after c_cpp_properties.json is modified, I found a restart is sometimes required when changing values.

此处有基本且不完整的信息: https://code.visualstudio.com/docs/语言/cpp

There is basic and incomplete information here: https://code.visualstudio.com/docs/languages/cpp

这是有关c_cpp_properties.json文件本身的良好链接: https://code.visualstudio.com/docs/cpp/c-cpp-properties-schema-reference

This is a good link about the c_cpp_properties.json file itself: https://code.visualstudio.com/docs/cpp/c-cpp-properties-schema-reference

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