TeamHeptaMirrors/gcc
1
0
Fork 1
mirror of https://github.com/gcc-mirror/gcc.git synced 2026-05-06 23:25:24 +02:00
Code Issues Packages Projects Releases Wiki Activity

BigInteger.java (euclidInv): Make sure quot and rem are in canonical form after divide().

Browse Source 
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.

From-SVN: r60292
This commit is contained in:
Raif Naffah
2002-12-19 06:59:46 +00:00
committed by Tom Tromey
parent 71d082af2f
commit a17cf75b73
2 changed files with 12 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
libjava/java/math/BigInteger.java
View File

@@ -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