rounder routine

Do people have a usual function they use when rounding
floats off to two decimal places (in order to represent
monetary amounts)?

I am asking because my program takes a percentage of a
dollar and cents amount, which can give a result of more
than two decimal places.

A friend suggested that I preserve the amount and just
print a rounded-off amount to screen. Good idea?

Miki
[email protected]

Quote:

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A friend suggested that I preserve the amount and just
print a rounded-off amount to screen.

---

Sounds like a good idea

Code:

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#include <stdio.h>

int main(void)
{
  float num = 10.53456;

  printf("%.2f", num);  // The .2 specifies the number of decimal places

  return 0;
}

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Thanks. I have two more questions.

First, does that code round up in case of a third decimal
place that is 5 or more?

Second, can you use <cstdio> instead of <stdio.h> in C++
programs, as I prefer the newer header files?

Miki
[email protected]

Quote:

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First, does that code round up in case of a third decimal
place that is 5 or more?

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Yup, change the value to 10.53656 and try it.

Quote:

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Second, can you use <cstdio> instead of <stdio.h> in C++
programs

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If you want to use cstdio try it, it will either work or it won't:)