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8183912: java.math.BigDecimal.movePointLeft() should return this if called with zero argument

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Reviewed-by: rriggs
This commit is contained in:
Brian Burkhalter 2018-12-19 11:44:57 -08:00
parent f398c3dcd2
commit 135d5dc279
1 changed files with 4 additions and 0 deletions
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4
src/java.base/share/classes/java/math/BigDecimal.java
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@ -2871,6 +2871,8 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* @throws ArithmeticException if scale overflows.
*/
public BigDecimal movePointLeft(int n) {
if (n == 0) return this;
// Cannot use movePointRight(-n) in case of n==Integer.MIN_VALUE
int newScale = checkScale((long)scale + n);
BigDecimal num = new BigDecimal(intVal, intCompact, newScale, 0);
@ -2893,6 +2895,8 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* @throws ArithmeticException if scale overflows.
*/
public BigDecimal movePointRight(int n) {
if (n == 0) return this;
// Cannot use movePointLeft(-n) in case of n==Integer.MIN_VALUE
int newScale = checkScale((long)scale - n);
BigDecimal num = new BigDecimal(intVal, intCompact, newScale, 0);