The CompareTo method in one of my classes involves assessing the distance between two points and returning a 1 positive one if the point compared is greater, 0 if equal and -1 if less.

int IComparable<Point>.CompareTo(Point other)

{

int resultX = X - other.X;

int resultY = Y - other.Y;

int result = resultX*resultX resultY*resultY;

if (result < 0)

{

return -1;

}

else if (result > 0)

{

return 1;

}

else

{

return 0;

}

}

​

However, when I try to use this method in one of my other classes, I get the following error "CS7036 There is no argument given that corresponds to the required formal parameter 'comparisonType' of 'MemoryExtensions.CompareTo(ReadOnlySpan<char>, ReadOnlySpan<char>, StringComparison)'.

​

Does anyone know why this happens?