Wtf??? 7/9*9 = 0???

[Tyrael]

Alright I took that test on C++, I did quite well expcept
WTF is 7/9*9 = 0 in C/C++

I compiled this:

#include <iostream.h>
int main()
{
	int a = 7/9*9;
	cout<<a;
	return 0;
}

[The V.]

First, something is wrong when the signature is five times as long as the post...

You are doing integer math -- meaning all fractional parts are discarded.

So, do each operation one at a time.

7 / 9 = 0 (fraction is discarded for integer math)
0 * 9 = 0.

So 7/9*9 = 0.

[GorGorAlmighty]

exactly...

#include <iostream.h>
int main()
{
float a = 7/9*9;
cout<<a;
return 0;
}