divisble?

[Axel]

I'm having trouble understanding or determining if a number is divisible by 10. Is 70 divisible by 10? How exactly is it worked out? I've tried a few divide calculations but it doesn't make sense as to why 10 is divisible.

I'm assuming the following:

70/10 = 7. There is no reminders therefore it's divisible by 10?..

[Dave_Sinkula]

The % operator returns zero if the lhs is evenly divisible by the rhs.

[edit]

#include <stdio.h>

int divisible(int x, int y)
{
   return x % y == 0;
}

int main()
{
   int x = 70, y = 10;
   printf("divisible(%d,%d) = %d\n", x, y, divisible(x,y));
   x = 42;
   printf("divisible(%d,%d) = %d\n", x, y, divisible(x,y));
   return 0;         
}

/* my output
divisible(70,10) = 1
divisible(42,10) = 0
*/

[Tonto]

This could also help. http://www.cplusplus.com/ref/cmath/modf.html

[quzah]

Basic math.

x = 70 / 10;
y = x * 10;

if( y == 70 )
    printf( "Yay!" );
else
    printf( "So sad!" );

Quzah.