Determining if a number has a remainder?

How could I do this in C? Knowing the remainder would be cool too.

If no one can think of a way of this, how about how can I find out if a number is even or even prime?

:-/

in c/c++ there is a modulus operator %

this does an integer division and returns the remainder.

I think you can work the rest out!

Yes, % will work, but here's a fun way:

Code:

---

int divide( int toDivide, int divideBy )
{
  int x=0;
  x = toDivide / divideBy;
  return ( toDivide == (divideBy * x) );
}

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That should do something like:

Code:

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printf("6 / 3 = 2, is there a remainder? %s.", divide( 6,3 ) ? "No" : "Yes" );

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Alternatly, you could just make that return the remainder:

Code:

---

int divide( int toDivide, int divideBy )
{
  int x=0;
  x = toDivide / divideBy;
  return (toDivide-(x*divideBy));
}

---

Quzah.

Quote:

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Originally posted by Stoned_Coder
in c/c++ there is a modulus operator %

this does an integer division and returns the remainder.

I think you can work the rest out!

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Hey thanks I had forgotten about the modulus operator!

I need to refresh my C skills.. hehe