Line data    Source code

       1              : /** \file generate_errno_info.cpp
       2              :  * \brief Generates errno_info.hpp from the configured errno name list.
       3              :  * \author Jared Males
       4              :  */
       5              : 
       6              : #include <cerrno>
       7              : #include <cstring>
       8              : #include <fstream>
       9              : #include <iostream>
      10              : #include <vector>
      11              : #include <string>
      12              : #include <format>
      13              : #include <algorithm>
      14              : 
      15            0 : int main()
      16              : {
      17              : 
      18            0 :     std::ifstream fin;
      19              : 
      20            0 :     std::vector<std::string> ERRNOS, errnos;
      21            0 :     fin.open("c++11_errnos.txt");
      22            0 :     while(fin)
      23              :     {
      24            0 :         std::string EN;
      25            0 :         fin >> EN;
      26            0 :         if(fin)
      27              :         {
      28            0 :             ERRNOS.push_back(EN);
      29            0 :             std::string en = EN;
      30            0 :             std::transform(en.begin(), en.end(), en.begin(),[](unsigned char c){ return std::tolower(c); });
      31            0 :             errnos.push_back(en);
      32            0 :         }
      33            0 :     }
      34              : 
      35            0 :     std::ofstream fout;
      36            0 :     fout.open("errno_info.hpp");
      37              : 
      38            0 :     fout << "//This is a generated file\n";
      39            0 :     fout << "//Only used during code generation\n";
      40            0 :     fout << "//It should not be installed\n";
      41            0 :     fout << '\n';
      42            0 :     fout << "#include <vector>\n";
      43            0 :     fout << "#include <string>\n\n";
      44            0 :     fout << "void errno_info( std::vector<std::string> & ERRNOs, std::vector<int> & EVALs, std::vector<std::string> & errnos, std::vector<std::string> & msgs)\n";
      45            0 :     fout << "{\n";
      46            0 :     for(size_t n = 0; n < errnos.size(); ++n)
      47              :     {
      48            0 :         fout << "    #ifdef " << ERRNOS[n] << '\n';
      49            0 :         fout << "    ERRNOs.push_back(\"" + ERRNOS[n] + "\");\n";
      50            0 :         fout << "    EVALs.push_back(" + ERRNOS[n] + ");\n";
      51            0 :         fout << "    errnos.push_back(\"" + errnos[n] + "\");\n";
      52            0 :         fout << "    msgs.push_back(strerror(" + ERRNOS[n] + "));\n";
      53            0 :         fout << "    #endif\n\n";
      54              :     }
      55              : 
      56            0 :     fout << "}\n";
      57              : 
      58            0 :     fout.close();
      59              : 
      60            0 :     return 0;
      61            0 : }