C Primer Plus®, Third Edition

Function Definitions

Although this book has used the ANSI C format for function declarations, C still recognizes the old format. C++, however, only recognizes the new format.

int twilf(q, n)  /* old-fashioned C, illegal C++ */
int q;           /* declare argument types here  */
int n;
{
    return (q - n) / (q * n);
}