public static Int32 FindDivisorWithoutReminder(this Int32 search_origin,Int32 dividend, ForwardBackwardDirection direction)
{
var r = 0;
dividend.DivRem(search_origin, out r);
if (r == 0)
return search_origin;
if (direction == ForwardBackwardDirection.Forward)
return FindNextDivisorWithoutReminder(dividend, search_origin);
else
return FindPreviousDivisorWithoutReminder(dividend, search_origin);
}
public static Int32 FindEvenNumber(this Int32 search_origin, ForwardBackwardDirection direction)
{
var r = 0;
search_origin.DivRem(2, out r);
if (r == 0)
return search_origin;
if (direction == ForwardBackwardDirection.Forward)
return search_origin + 1;
else
return search_origin - 1;
}
public static Int32 FindOddNumber(this Int32 search_origin, ForwardBackwardDirection direction)
{
var r = 0;
search_origin.DivRem(2, out r);
if (r == 1 || r == -1)
return search_origin;
if (direction == ForwardBackwardDirection.Forward)
{
return search_origin + 1;
}
else
{
return search_origin - 1;
}
}
