"assignment makes integer from pointer without a cast"

that error came up in my gnu compiler.... repeatedly.
Here's the code:

Code:

#include <stdio.h>

void first_prn();

float charge_counter(int *);

int main(void)

{
 int a=725, b=115, c=600, d=327, e=915, f=1011, g=47, *q;
 int i=1;
 int total;
 int charge;
 *q = &a;
first_prn();

printf("       123              725                  $ %f \n", ++i, charge_counter(q));
*q = &b;
total = charge;
printf("       205              115                  $ %f \n", ++i, charge_counter(q));
*q = &c;
total=total+charge;
printf("       464              600                  $ %f \n", ++i, charge_counter(q));
*q = &d;
total=total+charge;
printf("       596              327                  $ %f \n", ++i, charge_counter(q));
*q = &e;
total=total+charge;
printf("       601              915                  $ %f \n", ++i, charge_counter(q));
*q = &f;
total=total+charge;
printf("       613              1011                 $ %f \n", ++i, charge_counter(q));
*q = &g;
total=total+charge;
printf("       722              47                   $ %f \n", ++i, charge_counter(q));
total=total+charge;
printf("Total: %d               3740                 $ %d \n", i, total);

return 0;
}

float charge_counter(int *q)
{float charge;
int y;
y = *q;
        if (y <= 300)
        {charge = .09 * y;}
        else
                if (y > 300 &&  y <= 600)
           { (charge = 27 + (y - 300) * .08);}
           else
           { if (y > 600 && y <= 1000)
                   { (charge = 51 + (y - 600) * .06);}
                   else
                   {(charge = 75 + (y - 1000) * .05);}
        }
return charge;

Now, what the hell am I doing wrong? I'm sure it has something to do with my pointer poerator... or something...

Do you have a function definition for void first_prn() ? I didn't see one.

damn. I do have one, but it left it out. I'm at college and we use a compiler on a remote server (i.e. we write the source in the client window)

it's merely a line of text and there are no variables in it. insignificant.
Thank you for noticing though!!!

the ++i was supposed to increment a counter to tell the number of total customers.
/* Programming for school...damn i hate those rules...*/

Anyway, the deal with not using & is that I have to "Demonstrate how pointers can be used to solve the problem."


Hell, I'd write the whole damn thing in one function without pointers if I could.

oh BTW, ,the reason for the repetition of the pointer was to reassign it... i.e. assign pointer q to a new variable every time I call the function. /* Damn programming class...*/