您必须编辑c_cpp_properties.json 文件。查看它的示例here。
{
"env": {
"myDefaultIncludePath": ["${workspaceFolder}", "${workspaceFolder}/include"],
"myCompilerPath": "/usr/local/bin/gcc-7"
},
"configurations": [
{
"name": "Mac",
"intelliSenseMode": "clang-x64",
"includePath": ["${myDefaultIncludePath}", "/another/path"],
"macFrameworkPath": ["/System/Library/Frameworks"],
"defines": ["FOO", "BAR=100"],
"forcedInclude": ["${workspaceFolder}/include/config.h"],
"compilerPath": "/usr/bin/clang",
"cStandard": "c11",
"cppStandard": "c++17",
"compileCommands": "/path/to/compile_commands.json",
"browse": {
"path": ["${workspaceFolder}"],
"limitSymbolsToIncludedHeaders": true,
"databaseFilename": ""
}
}
],
"version": 4
}
在该文件中列出了一个选项cppStandard。它必须设置为c++11。那么auto就会被支持。