Thread: code for getting the GCD (greatest common divisor)

can someone help there seem to be a problem with my code

Code:

#include<stdio.h>#include<conio.h>
#include<math.h>
main()
{
        int gcd(int a,int b)
        {
            int c;
            while(1)
            {
                   c = a%b;
                   if(c==0)
                  return b;
                   a = b;
                   b = c;
                }
            }
            getch();
        }

Yes, there's many problems:
- Don't use implicit main > SourceForge.net: Implicit main - cpwiki
- No idea what you're trying to do nesting functions, but it doesn't work
- Lose the getch() and the outdated conio.h header
- Learn how to use while loops correctly, and realize that infinite loops with forced termination are bad code
- Your algorithm seems pretty screwy anyway