.. _program_listing_file_lib_CSVWriter.hpp:

Program Listing for File CSVWriter.hpp
======================================

|exhale_lsh| :ref:`Return to documentation for file <file_lib_CSVWriter.hpp>` (``lib/CSVWriter.hpp``)

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

.. code-block:: cpp

   //
   // Created by Varun on 9/23/2017.
   // https://thispointer.com/how-to-write-data-in-a-csv-file-in-c/
   // Remy van Elst on 6/16/2019
   // https://raymii.org/s/snippets/Cpp_create_and_write_to_a_csv_file.html
   //
   
   #ifndef DELPHI_CSVWRITER_HPP
   #define DELPHI_CSVWRITER_HPP
   
   
   #include <iostream>
   #include <fstream>
   #include <vector>
   #include <set>
   #include <iterator>
   #include <string>
   #include <algorithm>
   #include <mutex>
   
   /*
    * A class to create and write data in a csv file.
    */
   class CSVWriter
       {
     std::string fileName;
     std::string delimiter;
     int linesCount;
   //  std::mutex logMutex;
         public:
         CSVWriter(std::string filename = "ag_timing.csv", std::string delm = ",") :
         fileName(filename), delimiter(delm), linesCount(0)
         {}
         /*
          * Member function to store a range as comma seperated value
          */
         template<typename T>
         void write_row(T first, T last);
       };
   /*
    * This Function accepts a range and appends all the elements in the range
    * to the last row, separated by delimiter (Default is comma)
    */
   template<typename T>
   void CSVWriter::write_row(T first, T last)
   {
   //  std::lock_guard<std::mutex> csvLock(logMutex);
     std::fstream file;
     // Open the file in truncate mode if first line else in Append Mode
     file.open(fileName, std::ios::out | (linesCount ? std::ios::app : std::ios::trunc));
     // Iterate over the range and add each element to file separated by delimiter.
     for (; first != last; )
     {
       file << *first;
       if (++first != last)
         file << this->delimiter;
     }
     file << "\n";
     linesCount++;
     // Close the file
     file.close();
   };
   
   #endif // DELPHI_CSVWRITER_HPP