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MATH-1089

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Slightly simpler implementation.


git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1559067 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gilles Sadowski 2014-01-17 10:53:00 +00:00
parent e91d0f0510
commit 145cc675d3
1 changed files with 3 additions and 1 deletions
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src/main/java/org/apache/commons/math3/util/Precision.java
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@ -60,6 +60,8 @@ public class Precision {
private static final long SGN_MASK = 0x8000000000000000L; private static final long SGN_MASK = 0x8000000000000000L;
/** Offset to order signed double numbers lexicographically. */ /** Offset to order signed double numbers lexicographically. */
private static final int SGN_MASK_FLOAT = 0x80000000; private static final int SGN_MASK_FLOAT = 0x80000000;
/** Positive zero. */
private static final double POSITIVE_ZERO = 0d;
static { static {
/* /*
@ -396,7 +398,7 @@ public class Precision {
.setScale(scale, roundingMethod)) .setScale(scale, roundingMethod))
.doubleValue(); .doubleValue();
// MATH-1089: negative values rounded to zero should result in negative zero // MATH-1089: negative values rounded to zero should result in negative zero
return rounded == 0.0 ? rounded * FastMath.copySign(1d, x) : rounded; return rounded == POSITIVE_ZERO ? POSITIVE_ZERO * x : rounded;
} catch (NumberFormatException ex) { } catch (NumberFormatException ex) {
if (Double.isInfinite(x)) { if (Double.isInfinite(x)) {
return x; return x;