Question

I’m doing some file io and created the test below, but I thought testoutput2.txt would be the same as testinputdata.txt after running it?

testinputdata.txt:

some plain
    text
 data with
 a  number
42.0

testoutput2.txt (In some editors its on seperate lines, but in others its all on one line)

some plain
਍ऀ琀攀砀琀ഀഀ
 data with
਍ 愀  渀甀洀戀攀爀ഀഀ
42.0  

int main()
{
    //Read plain text data
    std::ifstream filein("testinputdata.txt");
    filein.seekg(0,std::ios::end);
    std::streampos length = filein.tellg();
    filein.seekg(0,std::ios::beg);
    std::vector<char> datain(length);
    filein.read(&datain[0], length);
    filein.close();

    //Write data
    std::ofstream fileoutBinary("testoutput.dat");
    fileoutBinary.write(&datain[0], datain.size());
    fileoutBinary.close();

    //Read file
    std::ifstream filein2("testoutput.dat");
    std::vector<char> datain2;
    filein2.seekg(0,std::ios::end);
    length = filein2.tellg();
    filein2.seekg(0,std::ios::beg);
    datain2.resize(length);
    filein2.read(&datain2[0], datain2.size());
    filein2.close();

    //Write data
    std::ofstream fileout("testoutput2.txt");
    fileout.write(&datain2[0], datain2.size());
    fileout.close();
}

Answer 1

Its working fine on my side, i have run your program on VC++ 6.0 and checked the output on notepad and MS Word. can you specify name of editor where you are facing problem.