Console output different results

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Hello everyone,
I am very new in C++ and I have question about console output. As practice I have wrote code for reading text from file line by line and output that to console window. In Visual Studio I'm getting normal results, but in Code::Blocks 20.03 after each character I have whitespace character inserted.
Visual Studio 2019: HERRERA FOR MEN 100ML 1936 7450,00
Code::Blocks 20.03: H E R R E R A F O R M E N 1 0 0 M L 1 9 3 6
Could someone explain to me why is this happening?
Thanks in advance.

What I have tried:

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

void readfromfile(string filenamestring)
{
    fstream newfile;
    newfile.open(filenamestring,ios::in);
    if(newfile.is_open())
    {
        string textline;
        while(getline(newfile,textline))
        {
            cout<<textline<<"\n";
        }
        newfile.close();
    }
}

int main()
{
    string filename="I:\\KREZA\\Podaci.txt";
    readfromfile(filename);
}

Posted 2-May-22 5:24am

Gruja82

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Comments

0x01AA 2-May-22 11:32am

That is most propably a Unicode problem.See e.g. here: How to make CB editor and Windows agree on a character set?[^]

Gruja82 2-May-22 12:00pm

After adding this line as first line in main(): system("cls"); everything works fine.

jeron1 2-May-22 12:23pm

Can't say I saw that one coming...

Michael Haephrati 9-Aug-22 11:01am

Try opening the file in ios::binary mode.

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hans.sch · Answer 1 · 2023-09-13T22:24:00

My first guess is that you have a Unicode/ANSI mismatch. Probably the file is encoded in Unicode which means that, for the conent which you showed, every other byte is a zero. You read this into a string which in essence is a sequence of bytes, and then output to cout which writes every byte as a separate character.

The solution is to replace fstream, string, and cout by wfstream, wstring ('textline' variable only), and wcout. This will treat pairs of bytes as 16-bit Unicode characters. As far as I understand the documentation, the file name itself can remain ANSI.

If you want to dive deeper into this matter, start with Wikipedia articles about Unicode and character encoding.