isZeroWidth static method
Computes whether the interval min, max
is effectively zero width.
I.e. the width of the interval is so much less than the
location of the interval that the midpoint of the interval cannot be
represented precisely.
/
Implementation
static bool isZeroWidth(double minValue, double maxValue) {
double width = maxValue - minValue;
if (width == 0.0) return true;
minValue = minValue.abs();
maxValue = maxValue.abs();
double maxAbs = maxValue >= minValue ? maxValue : minValue;
double scaledInterval = width / maxAbs;
int level = DoubleBits.exponent(scaledInterval);
return level <= MIN_BINARY_EXPONENT;
}