find word in file

[carly]

Hi i have been trying to solve this question:

Write a C++ program to find a given word in a file. It should display all the line numbers where the word occurs.

i did this code:

#include <iostream>
#include <conio.h>
#include <fstream>
 
using namespace std;
 
int main()
{
string s1;
ifstream in ("file.txt");
int lines = 0;
cout << "Enter your search string: " <<endl;
cin >> s1;
 
while(!in.eof())
{
   in.seekg(0,ios::beg);
   lines ++;
   if(//String in file)
   {
 
   cout<<"The  string occured at lines: " << lines<<endl;
  }
}
 
in.close();
 
getch();
return 0;
}

i just have problems in interpreting this part to code:
if(//String in file), hope that someone can help me fix it.

thanks

carly

[DemonPiggies]

this site has info about the ios::beg
http://www.cplusplus.com/doc/tutorial/files.html
it should be able to help you thru the search
I've used those funct.'s before so I can't really help without rewrite the program
but i'm assuming you need it to work with the one you posted right?

[DemonPiggies]

it also covers the " in.seekg(0,ios::beg) "
which you'll probably use to read each line and then maybe dump it in to a string (which might be easier to compare) and compare sl ( the user's string) with each character in the file...
like if( sl[x] == (Character from File) )...
well something like that, just make sure you add so error coding tho...

[carly]

this site has info about the ios::beg
http://www.cplusplus.com/doc/tutorial/files.html
it should be able to help you thru the search
I've used those funct.'s before so I can't really help without rewrite the program
but i'm assuming you need it to work with the one you posted right?

ummm... I only needed help in writing this part to code:

if(//String in file)

, the tutorials you gave me didnt really help me in figuring out how i can translate that sentence to code, but thanks anyway

carly