diff options
| -rw-r--r-- | libjava/ChangeLog | 6 | ||||
| -rw-r--r-- | libjava/java/math/BigInteger.java | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/libjava/ChangeLog b/libjava/ChangeLog index ae8559c..1340fc0 100644 --- a/libjava/ChangeLog +++ b/libjava/ChangeLog @@ -1,3 +1,9 @@ +2002-12-18 Raif Naffah <raif@fl.net.au> + + * java/math/BigInteger.java (euclidInv): Make sure quot and rem are in + canonical form after divide(). + (modInverse): Likewise. + 2002-12-13 Casey Marshall <rsdio@metastatic.org> Mark Wielaard <mark@klomp.org> diff --git a/libjava/java/math/BigInteger.java b/libjava/java/math/BigInteger.java index e8c6b1d..ac21ecc 100644 --- a/libjava/java/math/BigInteger.java +++ b/libjava/java/math/BigInteger.java @@ -1113,6 +1113,9 @@ public class BigInteger extends Number implements Comparable BigInteger rem = new BigInteger(); BigInteger quot = new BigInteger(); divide(a, b, quot, rem, FLOOR); + // quot and rem may not be in canonical form. ensure + rem.canonicalize(); + quot.canonicalize(); xy = euclidInv(b, rem, quot); } @@ -1192,6 +1195,9 @@ public class BigInteger extends Number implements Comparable BigInteger rem = new BigInteger(); BigInteger quot = new BigInteger(); divide(x, y, quot, rem, FLOOR); + // quot and rem may not be in canonical form. ensure + rem.canonicalize(); + quot.canonicalize(); result = euclidInv(y, rem, quot)[swapped ? 0 : 1]; // Result can't be negative, so make it positive by adding the |