[
    {
        "include" : "stdlib.h",
        "function": "char *realpath(const char *restrict file_name, char *restrict resolved_name);",
        "data" : [
            {
                "file_name":     ["\".\"", "\"./123456789\""],
                "resolved_name": "NULL",
                
                "return": "NULL",
                "errno" : "ENAMETOOLONG"
            }
        ]
    }
]