jsoncpp/test/data/test_comment_02.json

{
   /* C-style comment

    C-style-2 comment */
   "c-test" : {
      "a" : 1,
      /* Internal comment c-style */
      "b" : 2
   },
   // C++-style comment
   "cpp-test" : {
      // Multiline comment cpp-style
      // Second line
      "c" : 3,
      "d" : 4
   }
}