for loop - bad and good examples

Conditionals and Loops example from a Well House Consultants training course
More on Conditionals and Loops [link]

This example is described in the following article(s):
• New year, new C Course - [link]

Source code: lp2.c Module: C203

#include <stdio.h>

/* A for loop is a convenient way of setting an initial condition, a test and a step (or other
change to be made for each iteration in a loop) in a single statement. It allows you to have
all the controls in one place, rather than in 3 different lines. */

main () {

        int kids;
        float gift;
        float each;
        int favour;

        favour = kids = 17;
        gift = 200.00;

/* I would have been better (more conventional) to use a "while" here - I've only
used the middle section of the "for" and the initiliase and increment are coded
elsewhere! */

        for (; favour >= 1; ) {
                each = gift / favour;
                printf("%d in favours - %.2f each\n",favour,each);
                favour--;
        }

/* Here's a good use of a for */

        for (favour=kids; favour >= 1; favour--) {
                each = gift / favour;
                printf("%d in favours - %.2f each\n",favour,each);
        }

}

/* Sample output

munchkin:c2 grahamellis$ ./lp2
17 in favours - 11.76 each
16 in favours - 12.50 each
15 in favours - 13.33 each
14 in favours - 14.29 each
13 in favours - 15.38 each
12 in favours - 16.67 each
11 in favours - 18.18 each
10 in favours - 20.00 each
9 in favours - 22.22 each
8 in favours - 25.00 each
7 in favours - 28.57 each
6 in favours - 33.33 each
5 in favours - 40.00 each
4 in favours - 50.00 each
3 in favours - 66.67 each
2 in favours - 100.00 each
1 in favours - 200.00 each
17 in favours - 11.76 each
16 in favours - 12.50 each
15 in favours - 13.33 each
14 in favours - 14.29 each
13 in favours - 15.38 each
12 in favours - 16.67 each
11 in favours - 18.18 each
10 in favours - 20.00 each
9 in favours - 22.22 each
8 in favours - 25.00 each
7 in favours - 28.57 each
6 in favours - 33.33 each
5 in favours - 40.00 each
4 in favours - 50.00 each
3 in favours - 66.67 each
2 in favours - 100.00 each
1 in favours - 200.00 each
munchkin:c2 grahamellis$

*/

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