c++ - 启用 c++17 intellisense 打开文件夹 visual studio ninja-clang

Question

使用“-Xclang -std=c++17”我可以构建可执行文件，但是我找不到激活 c++17 intellisense 的内容。我已经尝试了很多组合，如下所示，但似乎都不起作用

CMakeLists.txt

cmake_minimum_required(VERSION 3.9.2)
set(CMAKE_CXX_STANDARD 17)
project(myapp)
add_compile_options("-Xclang" "-std=c++17")
add_executable(myapp main.cpp)
set_target_properties(myapp PROPERTIES CXX_STANDARD 17)
target_compile_features(myapp PRIVATE cxx_std_17)

主要.cpp

#include <tuple>
namespace test1::test2 // red [qualified name is not allowed]
//       ^^^^^^^^^^^^^
{}

int main()
{
    auto[a, b] = std::pair<int, int>();
    //  ^^^^^^
    return 0;
}

CMakeSettings.json

{
  // See https://go.microsoft.com//fwlink//?linkid=834763 for more information about this file.
  "configurations": [
    {
      "name": "x64-Debug",
      "generator": "Ninja",
      "configurationType": "Debug",
      "inheritEnvironments": [ "msvc_x64_x64" ],
      "buildRoot": "${env.USERPROFILE}\\CMakeBuilds\\${workspaceHash}\\build\\${name}",
      "installRoot": "${env.USERPROFILE}\\CMakeBuilds\\${workspaceHash}\\install\\${name}",
      "cmakeCommandArgs": "",
      "buildCommandArgs": "-v",
      "ctestCommandArgs": "",
      "variables": [
        {
          "name": "CMAKE_CXX_COMPILER",
          "value": "clang-cl"
        },
        {
          "name": "CMAKE_C_COMPILER",
          "value": "clang-cl"
        },
        {
          "name": "CMAKE_SYSTEM_NAME",
          "value": "Windows"
        }
      ]
    }
  ]
}

Answer 1

至于 2017 年 12 月，定义 IntelliSense 模式的唯一方法是通过根文件夹中的 CppProperties.json 文件，您不能将其与 CMakeSettings.json.

请参阅 Visual C++ Team Blog: Customizing your Environment with Visual C++ and Open Folder 下的评论:

• justanotherdev: "... Would it be possible to inherit CppProperties includes from the project created via CMake? If so, getting Linux intellisense from the Windows CMake project would be a breeze and would solve a major issue with Linux (needing to specify all the includes for a project manually)."
  • Will Buik [MSFT]: "This isn’t supported today. ..."

---

我已经尝试过了，但没有成功使用类似于 "Open Folder projects in Visual C++" documentation 中推荐的东西.

1. 我确实去了 Project/Edit Settings/CppProperties.json

   

2. 并插入到我的配置中进行测试，例如

   ...
       "compilerSwitches": "/std:c++17",
       "intelliSenseMode": "windows-msvc-x86"
   ...
   

   或任何其他支持的模式:

   

---

引用资料

• Developer Community: CMake C++ Project: Intellisense fails to parse included header directories
• Developer Community: Intellisense shows false errors with C++17 and CMake
• GitHub Microsoft/VSLinux Issue #131: openfolder project ignores intelliSenseMode
• Visual C++ Team Blog: Use any C++ Compiler with Visual Studio