Double to int warning.

[RAWBERRY]

I'm getting a warning that my variable is being converted to an int from a double, however, I see nothing in my code which would indicate a floating point number is being used.

#include <iostream>
#include <math.h>
using namespace std;

int main()
{
	int x;
	int sum = 0;
	int sumsq;


	for (x = 1; x <= 100; x++)
	{
		sum += pow(x, 2);
	}

	sumsq = pow(sum, 2);
	cout << (sumsq - sum);
	return 0;
}

Lines 14 and 17 seem to be at fault, but integer power functions should return an integer.

[Return 0]

pow returns a double. http://www.cplusplus.com/reference/clibrary/cmath/pow/

[filipe]

Not according to this: http://www.cplusplus.com/reference/clibrary/cmath/pow/

EDIT: too late!

[Disch]

You also shouldn't be using pow to square things. It's overkill. Just square them manually:

// sum += pow(x, 2);  <- bad

sum += x*x;  // <- good