.. _program_listing_file_util.hpp:

Program Listing for File util.hpp
=================================

|exhale_lsh| :ref:`Return to documentation for file <file_util.hpp>` (``util.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #ifndef UTIL_H_
   #define UTIL_H_
   
   #include <climits>
   #include <string>
   #include <vector>
   #include <unistd.h>
   #include <iostream>
   #include <chrono>
   #include <iomanip>
   #include <sstream>
   
   namespace Util {
   
   inline std::vector<std::string> split(const std::string &text, char sep) {
       std::vector<std::string> tokens;
       std::size_t start = 0, end = 0;
       while ((end = text.find(sep, start)) != std::string::npos) {
           tokens.push_back(text.substr(start, end - start));
           start = end + 1;
       }
       tokens.push_back(text.substr(start));
       return tokens;
   }
   
   
   inline std::string get_full_hostname() {
       char hostname[HOST_NAME_MAX];
       int rc = ::gethostname(hostname, HOST_NAME_MAX);
       return std::string(rc < 0 ? "" : hostname);
   }
   
   
   inline std::string get_hostname() {
       return split(get_full_hostname(), '.')[0];
   }
   
   
   inline std::string ISO8601TimeUTC() {
       auto now = std::chrono::system_clock::now();
       auto itt = std::chrono::system_clock::to_time_t(now);
       std::ostringstream ss;
       ss << std::put_time(gmtime(&itt), "%FT%TZ");
       return ss.str();
   }
   
   } // namespace Util
   
   #endif /* UTIL_H_ */