Function eucDiv

include/math.hpp:58–65

Euclidean division. `b` must be positive. */

`b` must be positive.
*/
inline int eucDiv(int a, int b) {
	int div = a / b;
	int mod = a % b;
	if (mod < 0) {
		div -= 1;
	}
	return div;
}

inline void eucDivMod(int a, int b, int* div, int* mod) {
	*div = a / b;