C header guard vscode snippet

guard.code-snippet

{
  "C++ Header Guard with extern C": {
    "prefix": "guard",
    "body": [
      "#ifndef ${1:${TM_FILENAME_BASE/(.*)/${1:/upcase}_H/}}",
      "#define ${1:${TM_FILENAME_BASE/(.*)/${1:/upcase}_H/}}",
      "",
      "#ifdef __cplusplus",
      "extern \"C\" {",
      "#endif",
      "",
      "$0",
      "",
      "#ifdef __cplusplus",
      "}",
      "#endif",
      "",
      "#endif // ${1}",
      "\n"
    ],
    "description": "Add C++ header guard with extern C protection against name mangling"
  }
}