obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 170 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/xml/xpath/ArithmeticExpr.java b/libjava/classpath/gnu/xml/xpath/ArithmeticExpr.java
new file mode 100644
index 000000000..a7bc62f2e
--- /dev/null
+++ b/libjava/classpath/gnu/xml/xpath/ArithmeticExpr.java
@@ -0,0 +1,170 @@
+/* ArithmeticExpr.java --
+   Copyright (C) 2004 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.xml.xpath;
+
+import gnu.java.lang.CPStringBuilder;
+
+import javax.xml.namespace.QName;
+import org.w3c.dom.Node;
+
+/**
+ * Binary arithmetic expression.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ */
+final class ArithmeticExpr
+  extends Expr
+{
+
+  static final int ADD = 0;
+  static final int SUBTRACT = 1;
+  static final int MULTIPLY = 2;
+  static final int DIVIDE = 3;
+  static final int MODULO = 4;
+
+  final Expr lhs;
+  final Expr rhs;
+  final int op;
+
+  ArithmeticExpr(Expr lhs, Expr rhs, int op)
+  {
+    this.lhs = lhs;
+    this.rhs = rhs;
+    switch (op)
+      {
+      case ADD:
+      case SUBTRACT:
+      case MULTIPLY:
+      case DIVIDE:
+      case MODULO:
+                                this.op = op;
+                                break;
+      default:
+        throw new IllegalArgumentException();
+      }
+  }
+
+  public Object evaluate(Node context, int pos, int len)
+  {
+    Object left = lhs.evaluate(context, pos, len);
+    Object right = rhs.evaluate(context, pos, len);
+
+    double ln = _number(context, left);
+    double rn = _number(context, right);
+    switch (op)
+      {
+      case ADD:
+        return new Double(ln + rn);
+      case SUBTRACT:
+        return new Double(ln - rn);
+      case MULTIPLY:
+        return new Double(ln * rn);
+      case DIVIDE:
+        if (rn == 0.0d || rn == -0.0d)
+          {
+            if (ln == 0.0d || ln == -0.0d)
+              {
+                return new Double(Double.NaN);
+              }
+            else
+              {
+                return new Double(ln < 0.0d ?
+                                  Double.NEGATIVE_INFINITY :
+                                  Double.POSITIVE_INFINITY);
+              }
+          }
+        return new Double(ln / rn);
+      case MODULO:
+        if (rn == 0.0d || rn == 0.0d)
+          {
+            if (ln == 0.0d || ln == -0.0d)
+              {
+                return new Double(Double.NaN);
+              }
+            else
+              {
+                return new Double(ln < 0.0d ?
+                                  Double.NEGATIVE_INFINITY :
+                                  Double.POSITIVE_INFINITY);
+              }
+          }
+        return new Double(ln % rn);
+      default:
+        throw new IllegalStateException();
+      }
+  }
+
+  public Expr clone(Object context)
+  {
+    return new ArithmeticExpr(lhs.clone(context), rhs.clone(context), op);
+  }
+
+  public boolean references(QName var)
+  {
+    return (lhs.references(var) || rhs.references(var));
+  }
+
+  public String toString()
+  {
+    CPStringBuilder buf = new CPStringBuilder();
+    buf.append(lhs);
+    buf.append(' ');
+    switch (op)
+      {
+      case ADD:
+        buf.append('+');
+        break;
+      case SUBTRACT:
+        buf.append('-');
+        break;
+      case MULTIPLY:
+        buf.append('*');
+        break;
+      case DIVIDE:
+        buf.append("div");
+        break;
+      case MODULO:
+        buf.append("mod");
+        break;
+      }
+    buf.append(' ');
+    buf.append(rhs);
+    return buf.toString();
+  }
+
+}