#include <stdio.h>

int main()
{
   FILE *in = fopen("text.txt", "r");
   if( !in )
       return  1 ;

   char line[ 256 ];
   while( !feof(in) )
   {
        if( fgets(line,  256 , in) )
            puts(line);
   }
   fclose(in);
   return  0 ;
};

#include <iostream>
#include <fstream>

int main()
{
    std::fstream in("test.txt");
    char line[ 256 ];
    while( in.getline(line,  256 ) )
    {
          std::cout << line << '\n';
    }            
    return  0 ; 
}

#include <iostream>
#include <fstream>
#include <string>

int main()
{
    std::fstream in("test.txt");
    std::string line;
    while( std::getline(in, line) )
    {
          std::cout << line << '\n';
    }            
    return  0 ; 
}