From ece594685232a960ae2dc73b1cbdc8d1d59d09a3 Mon Sep 17 00:00:00 2001
From: tromey <tromey@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sat, 19 Apr 2003 19:26:41 +0000
Subject: 2003-04-19  Jerry Quinn  <jlquinn@optonline.net>

	* java/math/BigInteger.java (probablePrime): New.
	* java/math/BigDecimal.java (unscaledValue): New.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@65825 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libjava/java/math/BigDecimal.java |  5 +++++
 libjava/java/math/BigInteger.java | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)

(limited to 'libjava/java/math')

diff --git a/libjava/java/math/BigDecimal.java b/libjava/java/math/BigDecimal.java
index a4a4a560e94..fc99cf1f7d2 100644
--- a/libjava/java/math/BigDecimal.java
+++ b/libjava/java/math/BigDecimal.java
@@ -431,6 +431,11 @@ public class BigDecimal extends Number implements Comparable
     return scale;
   }
   
+  public BigInteger unscaledValue()
+  {
+    return intVal;
+  }
+
   public BigDecimal abs () 
   {
     return new BigDecimal (intVal.abs (), scale);
diff --git a/libjava/java/math/BigInteger.java b/libjava/java/math/BigInteger.java
index 6f919f785cc..34ec5a4c425 100644
--- a/libjava/java/math/BigInteger.java
+++ b/libjava/java/math/BigInteger.java
@@ -223,6 +223,23 @@ public class BigInteger extends Number implements Comparable
       }
   }
 
+  /** 
+   *  Return a BigInteger that is bitLength bits long with a
+   *  probability < 2^-100 of being composite.
+   *
+   *  @param bitLength length in bits of resulting number
+   *  @param rnd random number generator to use
+   *  @throws ArithmeticException if bitLength < 2
+   *  @since 1.4
+   */
+  public static BigInteger probablePrime(int bitLength, Random rnd)
+  {
+    if (bitLength < 2)
+      throw new ArithmeticException();
+
+    return new BigInteger(bitLength, 100, rnd);
+  }
+
   /** Return a (possibly-shared) BigInteger with a given long value. */
   public static BigInteger valueOf(long val)
   {
-- 
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