Thread: time struct

Hey guys im trying to return the expiry time for a hypathetical car park meter using this program. The parking costs 1.10 per hour im trying to write this function to test this question.

so if i insert 2.00 that should give me a little less then 2 hours how would i calculate that?
Then return the expiry time using a time struct

Im using scanf because its just a test program

Code:

#include <stdlib.h>
#include <stdio.h>
#include <time.h>

int parking(time_t *time, float insert);


int main(void)
{
  time_t time;
  int pt;
  float input;

  pt = parking(&time, input);
  return EXIT_SUCCESS;	
}

int parking(time_t *time, float insert)
{
  
  
	
  float parkingCost = 1.10;
  float expire = 0.00;
  
  scanf("%f", &insert);
  
  if(insert < parkingCost)
  {
  	 printf("You have inserted money for less then an hour\n");
  	 return 0;
  }
  else if(insert > parkingCost)
  {
  	printf("You have inserted money past the hour\n");
  	expire = insert + parkingCost;
  	
  }
  
  
  printf("%f", expire);
  
  return  expire;
}

So 110 / 60 would equal the cost in pennies, per minute, for parking. If you need a smaller figure, divide by 60 again, to get the pennies per second charge.