Taking Another Step

The first sample program was pretty easy, and the next example, shown in Listing 2.2, isn't much harder.

Listing 2.2. The fathm_ft.c Program
// fathm_ft.c -- converts 2 fathoms to feet
#include <stdio.h>
int main(void)
{
   int feet, fathoms;

   fathoms = 2;
   feet = 6 * fathoms;
   printf("There are %d feet in %d fathoms!\n", feet, fathoms);
   printf("Yes, I said %d feet!\n", 6 * fathoms);

   return 0;
}

What's new? The code provides a program description, declares multiple variables, does some multiplication, and prints the values of two variables. Let's examine these points in more detail.

Documentation

First, the program begins with a comment (using the new comment style) identifying the filename and the purpose of the program. This ...

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