Thread: Problem With Pow Function, Help?

Hey...

So I'm having a bit of difficulty with a program I've put together, and it all seems to be surrounding the pow function. I can't even do a simple pow(2,2) without getting an error. And I have included the cmath library.

This is the error I get:
ld:
Unresolved:
pow

Any ideas?
(It's a binary to decimal converter)

Thanks!

Code:

          #include <iostream>
          #include <iomanip>
          #include <cmath>

          using namespace std;

          void main ()
             {
             int count = 0, bin, sum;
             char line[32] ;

             cin >> noskipws >> line[0] ;
             while ( line[count] != '\n' )
                {
                count ++ ;
                cin >> line[count] ;
                }

             sum = 0;

             for ( bin = count - 1; bin >= 0; bin -- )
                {
                sum = sum + (line[bin] * pow(2,bin));
                }

             cout << sum;     
             cout << endl ;
             }