Expert: Zlatko - 10/29/2010

Question
Hi !
Im creating program that will read one word from the text
file. The word i want my program to read is PROFILE. I am
beginer so I dont know much about C++ programing. I realy
need help because I almost finished my program, I just need
this bit of code.

The file with word PROFILE in it will be named profile.txt.  

Answer
Hello Krystian

I could help you more if I knew what the profile.txt looked like and what you needed to do once the word PROFILE was found. For now I can give you the sample code below to show you how to open a file, read it's lines, and search for a line that starts with PROFILE.

I hope that helps you. Let me know if there is something in the program that you don't understand.

Best regards
Zlatko

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

void readFromFile(void)
{
   // open the file and check that it was found
   ifstream in("profile.txt");
   if ( ! in.good())
   {
       cout << "Cannot open the file\n";
   }
   else
   {
       while(in.good())
       {
           // read the file lines into a string called line
           string line;
           getline(in, line);
   
           // compare the first 7 characters of line with the word "PROFILE"
           // This comparison is case sensitive.
           if (line.compare(0, 7, "PROFILE") == 0)
           {
               cout << "Found the profile line!\n";
               // what you do here is up to you
           }
           else
           {
               cout << "Read line: '" << line << "'\n";
           }
       }
   }
}

int main(void)
{
   readFromFile();
}