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From 14fa6fc320eb84d0adb9ae00dd66ddb1caaae2a6 Mon Sep 17 00:00:00 2001
From: Chris Laplante <chris.laplante@agilent.com>
Date: Wed, 2 Oct 2019 21:46:01 -0400
Subject: [PATCH 2/2] Fix BigDecimal.stripTrailingZeros()'s handling of 0.
Previously, 'new BigDecimal("0").stripTrailingZeros()' would blow up:
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.charAt
at java.math.BigDecimal.stripTrailingZeros
Fixes https://sourceforge.net/p/saxon/mailman/message/27204592/
Upstream-Status: Inappropriate [dead project]
Signed-off-by: Chris Laplante <chris.laplante@agilent.com>
---
java/math/BigDecimal.java | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/java/math/BigDecimal.java b/java/math/BigDecimal.java
index e14d894..5e30f1c 100644
--- a/java/math/BigDecimal.java
+++ b/java/math/BigDecimal.java
@@ -1335,17 +1335,22 @@ public class BigDecimal extends Number implements Comparable<BigDecimal>
*/
public BigDecimal stripTrailingZeros()
{
+ if (intVal.intValue() == 0)
+ return ZERO;
+
String intValStr = intVal.toString();
int newScale = scale;
int pointer = intValStr.length() - 1;
+
// This loop adjusts pointer which will be used to give us the substring
// of intValStr to use in our new BigDecimal, and also accordingly
// adjusts the scale of our new BigDecimal.
- while (intValStr.charAt(pointer) == '0')
+ while (pointer >= 0 && intValStr.charAt(pointer) == '0')
{
pointer --;
newScale --;
}
+
// Create a new BigDecimal with the appropriate substring and then
// set its scale.
BigDecimal result = new BigDecimal(intValStr.substring(0, pointer + 1));
--
2.7.4
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