Reading a file in C ++

Question

I cannot understand why my code cannot open and read the file. What am I missing?

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

int main (int argc, char * const argv[]) 
{
    string line;
    ifstream myfile ("input_file_1.txt");
    if (myfile.is_open())
    {
        while (!myfile.eof())
        {
            getline (myfile,line);
            cout << line << endl;
        }
    }
    else
    {
        cout << "Was unable to open the file" << endl;
    }

    return 0;
}

The file "input_file_1.txt" is the same directory as my .cpp file, and it has read permissions. I even gave 777 permissions, and I could not read it.

Can someone tell me what I am doing wrong? I really can't figure it out.

Answer 1

• Try using the full path for the file
• By default, the executable is used to search for the file, not the source.

Answer 2

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Answer 3

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Answer 4

:

EOF .
(getline() ) , EOF. . . eof() ( EOF). ( getline()), , 0 ( , undefined). (undefined ) .

    while (!myfile.eof())
    {
        getline (myfile,line);
        cout << line << endl;
    }

, :

    while (getline (myfile,line))
    {
        cout << line << endl;
    }

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Answer 5

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