c_cpp_properties.json for ROS Melodic

c_cpp_properties.json

{
  "configurations": [
    {
      "name": "ROS",
      "browse": {
        "databaseFilename": "",
        "limitSymbolsToIncludedHeaders": true
      },
      "includePath": [
        "${workspaceFolder}/src/**",
        "${workspaceFolder}/install/**",
        "${workspaceFolder}/devel/**",
        "/opt/ros/melodic/include/**",
        "/usr/local/include/**",
        "/usr/include/**"
      ],
      "defines": [],
      "intelliSenseMode": "gcc-x64",
      "compilerPath": "/usr/bin/gcc",
      "cStandard": "c11",
      "cppStandard": "c++14"
    }
  ],
  "version": 4
} 

There was an error when using gnu++14 for cppStandard.
microsoft/vscode-cpptools#5963 (comment)