error C2297: '%' : illegal, right operand has type 'double'

[sahar7203]

i got this error(error C2297: '%' : illegal, right operand has type 'double') in this programmig,
who can help me?

#include<stdio.h>
int main(void)
{
	printf("Amount of sale ($):\t");
float a;
scanf("%f", &a);

printf("Cash tendered ($):\t");
float b;
scanf("%f", &b);

int twenties,tens,fives,ones;

printf("Change:\n");
float c;
c = b - a;



printf("twenties:\t");
twenties=c/20;
printf("%d",twenties);

int m,l,o,q,d,n,p;

m=(c%20);
printf("tens:\t");
tens=m/10;
printf("%d",tens);

l=(m%10);
printf("fives:\t");
fives=l/5;
printf("%d",fives);

o=(l%5);
printf("ones:\t");
ones=o/1;
printf("%d",ones);

int quarters,dimes,nickels,pennies;

q=(o%1);
printf("quarters:\t");
quarters=q/0.25;
printf("%d",quarters);

d=(q%0.25);
printf("dimes:\t");
dimes=d/0.10;
printf("%d",dimes);

n=(d%0.10);
printf("nickels:\t");
nickels=n/0.05;
printf("%d",nickels);

p=(n%0.05);
printf("pennies:\t");
printf("%d",p);


return 0;
}

[Rabbit]

You can't mod a float. Mod is only for integers.

[whodgson]

Yes...but you can of course 'modf'