aherbert commented on a change in pull request #2:
URL: https://github.com/apache/commons-statistics/pull/2#discussion_r458936797
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File path:
commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/AbstractDiscreteDistribution.java
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@@ -120,25 +120,24 @@ public int inverseCumulativeProbability(final double p) {
private int solveInverseCumulativeProbability(final double p,
int lower,
int upper) {
- while (lower + 1 < upper) {
- int xm = (lower + upper) / 2;
- if (xm < lower || xm > upper) {
- /*
- * Overflow.
- * There will never be an overflow in both calculation methods
- * for xm at the same time
- */
- xm = lower + (upper - lower) / 2;
Review comment:
Why don't we just use this formula all the time and avoid the if
statement? This is single extra addition but does not require a branch.
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