Supermarket checkout C program

Hi im a newbie and im not very good so far but i need to be for my university course!

anyway i need to make a program that uses loops and adds up numbers as they're typed in, in float values, and keep a running total, and once the user enters a zero value the program should stop reading numbers and print out (a) the grand total (b) the number of items.

Im so stuck i cant even think!

Hope you can help cheers!

oh forgot to say im not using scanf we have our own simpleio library.

Please post the code

if you can call this code this is where im stuck!

#include <stdio.h>
#include "/home/simpleio.h"

int main()

{
float a = 0,
printf(" Type in price of product\n"); a = getFloat();

while (a > 0)
{
printf(" Type in price of product\n");

what is the problem man u are facing ??

Sure you don't mean...

Code:

---


while((a = getFloat()) != 0.0f)
{
  /* ... do something */
}

/* print totals */

---

...?

i dont know how to complete it

Ok What you are not doing is

you are not taking any values from the user

just use scanf for taking the user input

Code:

---

take input in a

while ( a != 0) {
  do calculation
}

---

Cprogramming.com Tutorial: Loops

whats wrong with getFloat?

Where is getFlot man
??

Can u paste that code also if that code is on your machine how can i know, Whatz the problem what that ???

#include <stdio.h>
#include "/home/simpleio.h"

int main()

{
float a = 0,
printf(" Type in price of product\n"); a = getFloat();

while (a > 0)
{
printf(" Type in price of product\n");

this is literally all i can think of im crap at this

Is getFloat is a standard library function or a user defined function ???

And if user defined than can you please paste the code ??

standard library

Quote:

---

Originally Posted by tom619

standard library

---

Ok if that is the case, than what you can do

Code:

---

while (a != getFloat() {
  // Do Calculations
}

---

Quote:

---

Originally Posted by RockyMarrone

Ok if that is the case, than what you can do

Code:

---

while (a != getFloat() {
  // Do Calculations
}

---

---

No. That is not any viable solution. Entering "1" then "1" will break the loop.

I have posted a viable loop above... why not use it?