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# 1  
Old 01-06-2010
c++ file read

Hey there,

I'm new to this forum, so first of all hi to everyone :P.

Lately, I encountered some problem which I don't know how to solve it. This weird behaviour has to do with reading a line in a text file. I have the code below.

Code:
#include <cstdlib>
#include <iostream>
#include <fstream>

using namespace std;

int main(int argc, char *argv[])
{
    std::ifstream file;
    string filename = "halloo.txt";
    string input;
    
    file.open((filename).c_str());
    
    if(!file.is_open())
    {
     cout << "ERROR: FILE IS NOT OPEN" << endl;                  
    }
    
    while(1)
    {
     if(file.eof())break;       
     getline(file, input);

     //cout << input << endl;
     for(int i=0; i<input.size(); i++)
     {
      if(isalnum(input[i]))
      {
       cout << input << " is woord" << endl;                    
      }  
      else
      {
       cout << input << " is symbol" << endl; 
      }              
     }
     //cout << input << endl;
    }   
    system("PAUSE");
    return 0;
}

What i want to do is read a line from the text file and print it on a console. My text file is very simple. It consist one letter 'd' and a new line (pressed enter).

I'm working with dev c++ and this works comepletely fine.
When I read this it print's:
"d is a woord".

But when I run this on an UNIX system it gives me a completely different prints.

it prints:
" is woord" (with an empty space before "is")
" is symbol" (with an empty space before "is")

This is where I find it difficult to understand. It does not do what I want. It gives me a different print than dev c++.

Does anyone know this problem and can help me about it ?
# 2  
Old 01-06-2010
i think you may need:

Code:
cout << input[i] << " is woord" << endl;

missing the array reference.
# 3  
Old 01-06-2010
I finally got it work.

Thank you for pointing that out, that was also a problem why it didn't print.

The main focus was on '\r'. That is the character which i found in UNIX when reading it out and dev c++ doesn't seem to have that problem.

Someone posted it but then he/she deleted his/her post. Thanks to whoever it was.

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