utf 8 - How to convert encoding type of multiple .txt & .pro files from ANSI to UTF-8 -


i have multiple .txt files encoding format ansi in folder named folder1. need convert utf-8 encoding type files in empty folder name folder2. don't want convert files 1 one - want convert them @ time.

use multibytetowidechar() cp_acp convert data widechar , use widechartomultibyte() cp_utf8 convert in utf8 if talking c++

static int to_utf8encodefile(std::wstring filepath) {     int error_code = 0;     //read text file in ansi encoding type     std::string filename(filepath.begin(), filepath.end());     std::string filecontent;     filecontent = readfile(filename.c_str());     if(filecontent.empty())     {         return getlasterror();     }     int wchars_num =  multibytetowidechar( cp_acp , 0 , filecontent.c_str() , -1, null , 0 );     wchar_t* wstr = new wchar_t[wchars_num];     error_code = multibytetowidechar( cp_acp , 0 , filecontent.c_str() , -1, wstr , wchars_num );     if(error_code == 0)     {         delete [] wstr;         return getlasterror();     }      int size_needed = widechartomultibyte(cp_utf8 , 0, &wstr[0], -1, null, 0, null, null);     std::string strto( size_needed, 0 );     error_code = widechartomultibyte(cp_utf8 , 0, &wstr[0], -1 , &strto[0], size_needed, null, null);     delete [] wstr;     if(error_code == 0)     {         return getlasterror();     }      //write utf-8 file     std::ofstream utf_stream(filepath.c_str());      utf_stream << strto.c_str();     utf_stream.close();     return error_code;     }

above code converts single ansi file utf8 , can use cp_utf16 want , hope code helpfull


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