c++ function

bbk · #1 (**permalink**) 06-21-04, 11:02

Hi,
I have to implement the following function:

void SetAmount(double dAmount);

I have to extract dollars and cents from dAmount.
So far I have the following:

int x = dAmount * 1000;
int r = x % 10;
if(r >= 5) x += 10 - r;
else x -= r;
Cents = (x % 1000) / 10;

I'm stuck on how to extract the dollars.

Thanks in advance!

Pat Phelan · #2 (**permalink**) 06-21-04, 13:13

Which C++ compiler are you using?

How much have you covered in class, specifically have you covered the std namespace and the packages within it? Can you post the assignment as given, there seem to be a lot of missing details.

-PatP

bbk · #3 (**permalink**) 06-23-04, 08:33

I am doing this is phobos. I have cover std namespace and I've included my assignment specs. If there is anything else you need just let me know.

Thanks.

Seppuku · #4 (**permalink**) 06-23-04, 11:36

Is the professor for your class Maya Strelnikova by chance?

bbk · #5 (**permalink**) 06-23-04, 13:46

No, why do you ask?

Seppuku · #6 (**permalink**) 06-23-04, 13:51

Just curious

Pat Phelan · #7 (**permalink**) 06-23-04, 15:08

Extending the logic you posted, I'd use:

Code:

x = 1000 * dAmount;

Cents = x / 10 % 100		// assign hundredths as int
+ (x % 10 < 5) ? 0 : 1;		// adjustment for rounding

Dollars = x / 1000;		// first cut at Dollars

if (99 < Cents) {		// if overflow
   Cents -= 100;
   Dollars++;
   };

-PatP

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