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FloatingPointPrecision.java
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FloatingPointPrecision.java
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package com.jschiff.math.fpprecision;
import java.util.Objects;
import java.util.function.Supplier;
import java.util.stream.Stream;
public class FloatingPointPrecision {
public static void main(String[] args) {
float start = Float.parseFloat(args[0]);
float end = Float.parseFloat(args[1]);
var fpp = new FloatingPointPrecision();
var results = fpp.processRange(start, end);
System.out.println("Low, High, Values In Between");
results.forEach(System.out::println);
}
public Stream<PrecisionPair> processRange(float start, float end) {
return Stream.generate(new PairSupplier(start, end))
.takeWhile(Objects::nonNull);
}
private static class PairSupplier implements Supplier<PrecisionPair> {
final float start;
final float target;
float cursor;
public PairSupplier(float start, float target) {
this.start = start;
this.target = target;
cursor = start;
if (target < start) throw new IllegalArgumentException("Start must be less than target");
}
@Override
public PrecisionPair get() {
if (cursor > target) {
return null;
}
var toReturn = Common.numberOfValues(cursor);
cursor++;
return toReturn;
}
}
}