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
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 706 insertions, 0 deletions

diff --git a/libjava/classpath/java/lang/StringBuilder.java b/libjava/classpath/java/lang/StringBuilder.java
new file mode 100644
index 000000000..83a064ad0
--- /dev/null
+++ b/libjava/classpath/java/lang/StringBuilder.java
@@ -0,0 +1,706 @@
+/* StringBuilder.java -- Unsynchronized growable strings
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008
+   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 java.lang;
+
+import java.io.Serializable;
+
+/**
+ * <code>StringBuilder</code> represents a changeable <code>String</code>.
+ * It provides the operations required to modify the
+ * <code>StringBuilder</code>, including insert, replace, delete, append,
+ * and reverse. It like <code>StringBuffer</code>, but is not
+ * synchronized.  It is ideal for use when it is known that the
+ * object will only be used from a single thread.
+ *
+ * <p><code>StringBuilder</code>s are variable-length in nature, so even if
+ * you initialize them to a certain size, they can still grow larger than
+ * that. <em>Capacity</em> indicates the number of characters the
+ * <code>StringBuilder</code> can have in it before it has to grow (growing
+ * the char array is an expensive operation involving <code>new</code>).
+ *
+ * <p>Incidentally, compilers often implement the String operator "+"
+ * by using a <code>StringBuilder</code> operation:<br>
+ * <code>a + b</code><br>
+ * is the same as<br>
+ * <code>new StringBuilder().append(a).append(b).toString()</code>.
+ *
+ * <p>Classpath's StringBuilder is capable of sharing memory with Strings for
+ * efficiency.  This will help when a StringBuilder is converted to a String
+ * and the StringBuilder is not changed after that (quite common when
+ * performing string concatenation).
+ *
+ * @author Paul Fisher
+ * @author John Keiser
+ * @author Tom Tromey
+ * @author Eric Blake (ebb9@email.byu.edu)
+ * @see String
+ * @see StringBuffer
+ *
+ * @since 1.5
+ */
+public final class StringBuilder
+  extends AbstractStringBuffer
+  implements Serializable, CharSequence, Appendable
+{
+  // Implementation note: if you change this class, you usually will
+  // want to change StringBuffer as well.
+
+  /**
+   * For compatability with Sun's JDK
+   */
+  private static final long serialVersionUID = 4383685877147921099L;
+
+  /**
+   * Create a new StringBuilder with default capacity 16.
+   */
+  public StringBuilder()
+  {
+    super();
+  }
+
+  /**
+   * Create an empty <code>StringBuilder</code> with the specified initial
+   * capacity.
+   *
+   * @param capacity the initial capacity
+   * @throws NegativeArraySizeException if capacity is negative
+   */
+  public StringBuilder(int capacity)
+  {
+    super(capacity);
+  }
+
+  /**
+   * Create a new <code>StringBuilder</code> with the characters in the
+   * specified <code>String</code>. Initial capacity will be the size of the
+   * String plus 16.
+   *
+   * @param str the <code>String</code> to convert
+   * @throws NullPointerException if str is null
+   */
+  public StringBuilder(String str)
+  {
+    super(str);
+  }
+
+  /**
+   * Create a new <code>StringBuilder</code> with the characters in the
+   * specified <code>CharSequence</code>. Initial capacity will be the
+   * length of the sequence plus 16; if the sequence reports a length
+   * less than or equal to 0, then the initial capacity will be 16.
+   *
+   * @param seq the initializing <code>CharSequence</code>
+   * @throws NullPointerException if str is null
+   */
+  public StringBuilder(CharSequence seq)
+  {
+    super(seq);
+  }
+
+  /**
+   * Get the length of the <code>String</code> this <code>StringBuilder</code>
+   * would create. Not to be confused with the <em>capacity</em> of the
+   * <code>StringBuilder</code>.
+   *
+   * @return the length of this <code>StringBuilder</code>
+   * @see #capacity()
+   * @see #setLength(int)
+   */
+  public int length()
+  {
+    return count;
+  }
+
+  /**
+   * Get the total number of characters this <code>StringBuilder</code> can
+   * support before it must be grown.  Not to be confused with <em>length</em>.
+   *
+   * @return the capacity of this <code>StringBuilder</code>
+   * @see #length()
+   * @see #ensureCapacity(int)
+   */
+  public int capacity()
+  {
+    return value.length;
+  }
+
+  /**
+   * Append the <code>String</code> value of the argument to this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param obj the <code>Object</code> to convert and append
+   * @return this <code>StringBuilder</code>
+   * @see String#valueOf(Object)
+   * @see #append(String)
+   */
+  public StringBuilder append(Object obj)
+  {
+    super.append(obj);
+    return this;
+  }
+
+  /**
+   * Append the <code>String</code> to this <code>StringBuilder</code>. If
+   * str is null, the String "null" is appended.
+   *
+   * @param str the <code>String</code> to append
+   * @return this <code>StringBuilder</code>
+   */
+  public StringBuilder append(String str)
+  {
+    super.append(str);
+    return this;
+  }
+
+  /**
+   * Append the <code>StringBuilder</code> value of the argument to this
+   * <code>StringBuilder</code>. This behaves the same as
+   * <code>append((Object) stringBuffer)</code>, except it is more efficient.
+   *
+   * @param stringBuffer the <code>StringBuilder</code> to convert and append
+   * @return this <code>StringBuilder</code>
+   * @see #append(Object)
+   */
+  public StringBuilder append(StringBuffer stringBuffer)
+  {
+    super.append(stringBuffer);
+    return this;
+  }
+
+  /**
+   * Append the <code>char</code> array to this <code>StringBuilder</code>.
+   * This is similar (but more efficient) than
+   * <code>append(new String(data))</code>, except in the case of null.
+   *
+   * @param data the <code>char[]</code> to append
+   * @return this <code>StringBuilder</code>
+   * @throws NullPointerException if <code>str</code> is <code>null</code>
+   * @see #append(char[], int, int)
+   */
+  public StringBuilder append(char[] data)
+  {
+    super.append(data, 0, data.length);
+    return this;
+  }
+
+  /**
+   * Append part of the <code>char</code> array to this
+   * <code>StringBuilder</code>. This is similar (but more efficient) than
+   * <code>append(new String(data, offset, count))</code>, except in the case
+   * of null.
+   *
+   * @param data the <code>char[]</code> to append
+   * @param offset the start location in <code>str</code>
+   * @param count the number of characters to get from <code>str</code>
+   * @return this <code>StringBuilder</code>
+   * @throws NullPointerException if <code>str</code> is <code>null</code>
+   * @throws IndexOutOfBoundsException if offset or count is out of range
+   *         (while unspecified, this is a StringIndexOutOfBoundsException)
+   */
+  public StringBuilder append(char[] data, int offset, int count)
+  {
+    super.append(data, offset, count);
+    return this;
+  }
+
+  /**
+   * Append the <code>String</code> value of the argument to this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param bool the <code>boolean</code> to convert and append
+   * @return this <code>StringBuilder</code>
+   * @see String#valueOf(boolean)
+   */
+  public StringBuilder append(boolean bool)
+  {
+    super.append(bool);
+    return this;
+  }
+
+  /**
+   * Append the <code>char</code> to this <code>StringBuilder</code>.
+   *
+   * @param ch the <code>char</code> to append
+   * @return this <code>StringBuilder</code>
+   */
+  public StringBuilder append(char ch)
+  {
+    super.append(ch);
+    return this;
+  }
+
+  /**
+   * Append the characters in the <code>CharSequence</code> to this
+   * buffer.
+   *
+   * @param seq the <code>CharSequence</code> providing the characters
+   * @return this <code>StringBuilder</code>
+   */
+  public StringBuilder append(CharSequence seq)
+  {
+    super.append(seq, 0, seq.length());
+    return this;
+  }
+
+  /**
+   * Append some characters from the <code>CharSequence</code> to this
+   * buffer.  If the argument is null, the four characters "null" are
+   * appended.
+   *
+   * @param seq the <code>CharSequence</code> providing the characters
+   * @param start the starting index
+   * @param end one past the final index
+   * @return this <code>StringBuilder</code>
+   */
+  public StringBuilder append(CharSequence seq, int start,
+                              int end)
+  {
+    super.append(seq, start, end);
+    return this;
+  }
+
+  /**
+   * Append the <code>String</code> value of the argument to this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param inum the <code>int</code> to convert and append
+   * @return this <code>StringBuilder</code>
+   * @see String#valueOf(int)
+   */
+  // This is native in libgcj, for efficiency.
+  public StringBuilder append(int inum)
+  {
+    super.append(inum);
+    return this;
+  }
+
+  /**
+   * Append the <code>String</code> value of the argument to this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param lnum the <code>long</code> to convert and append
+   * @return this <code>StringBuilder</code>
+   * @see String#valueOf(long)
+   */
+  public StringBuilder append(long lnum)
+  {
+    super.append(lnum);
+    return this;
+  }
+
+  /**
+   * Append the <code>String</code> value of the argument to this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param fnum the <code>float</code> to convert and append
+   * @return this <code>StringBuilder</code>
+   * @see String#valueOf(float)
+   */
+  public StringBuilder append(float fnum)
+  {
+    super.append(fnum);
+    return this;
+  }
+
+  /**
+   * Append the <code>String</code> value of the argument to this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param dnum the <code>double</code> to convert and append
+   * @return this <code>StringBuilder</code>
+   * @see String#valueOf(double)
+   */
+  public StringBuilder append(double dnum)
+  {
+    super.append(dnum);
+    return this;
+  }
+
+  /**
+   * Append the code point to this <code>StringBuilder</code>.
+   * This is like #append(char), but will append two characters
+   * if a supplementary code point is given.
+   *
+   * @param code the code point to append
+   * @return this <code>StringBuilder</code>
+   * @see Character#toChars(int, char[], int)
+   * @since 1.5
+   */
+  public StringBuilder appendCodePoint(int code)
+  {
+    super.appendCodePoint(code);
+    return this;
+  }
+
+  /**
+   * Delete characters from this <code>StringBuilder</code>.
+   * <code>delete(10, 12)</code> will delete 10 and 11, but not 12. It is
+   * harmless for end to be larger than length().
+   *
+   * @param start the first character to delete
+   * @param end the index after the last character to delete
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if start or end are out of bounds
+   */
+  public StringBuilder delete(int start, int end)
+  {
+    super.delete(start, end);
+    return this;
+  }
+
+  /**
+   * Delete a character from this <code>StringBuilder</code>.
+   *
+   * @param index the index of the character to delete
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if index is out of bounds
+   */
+  public StringBuilder deleteCharAt(int index)
+  {
+    super.deleteCharAt(index);
+    return this;
+  }
+
+  /**
+   * Replace characters between index <code>start</code> (inclusive) and
+   * <code>end</code> (exclusive) with <code>str</code>. If <code>end</code>
+   * is larger than the size of this StringBuilder, all characters after
+   * <code>start</code> are replaced.
+   *
+   * @param start the beginning index of characters to delete (inclusive)
+   * @param end the ending index of characters to delete (exclusive)
+   * @param str the new <code>String</code> to insert
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if start or end are out of bounds
+   * @throws NullPointerException if str is null
+   */
+  public StringBuilder replace(int start, int end, String str)
+  {
+    super.replace(start, end, str);
+    return this;
+  }
+
+  /**
+   * Creates a substring of this StringBuilder, starting at a specified index
+   * and ending at the end of this StringBuilder.
+   *
+   * @param beginIndex index to start substring (base 0)
+   * @return new String which is a substring of this StringBuilder
+   * @throws StringIndexOutOfBoundsException if beginIndex is out of bounds
+   * @see #substring(int, int)
+   */
+  public String substring(int beginIndex)
+  {
+    return substring(beginIndex, count);
+  }
+
+  /**
+   * Creates a substring of this StringBuilder, starting at a specified index
+   * and ending at one character before a specified index. This is implemented
+   * the same as <code>substring(beginIndex, endIndex)</code>, to satisfy
+   * the CharSequence interface.
+   *
+   * @param beginIndex index to start at (inclusive, base 0)
+   * @param endIndex index to end at (exclusive)
+   * @return new String which is a substring of this StringBuilder
+   * @throws IndexOutOfBoundsException if beginIndex or endIndex is out of
+   *         bounds
+   * @see #substring(int, int)
+   */
+  public CharSequence subSequence(int beginIndex, int endIndex)
+  {
+    return substring(beginIndex, endIndex);
+  }
+
+  /**
+   * Creates a substring of this StringBuilder, starting at a specified index
+   * and ending at one character before a specified index.
+   *
+   * @param beginIndex index to start at (inclusive, base 0)
+   * @param endIndex index to end at (exclusive)
+   * @return new String which is a substring of this StringBuilder
+   * @throws StringIndexOutOfBoundsException if beginIndex or endIndex is out
+   *         of bounds
+   */
+  public String substring(int beginIndex, int endIndex)
+  {
+    int len = endIndex - beginIndex;
+    if (beginIndex < 0 || endIndex > count || endIndex < beginIndex)
+      throw new StringIndexOutOfBoundsException();
+    if (len == 0)
+      return "";
+    return new String(value, beginIndex, len);
+  }
+
+  /**
+   * Insert a subarray of the <code>char[]</code> argument into this
+   * <code>StringBuilder</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param str the <code>char[]</code> to insert
+   * @param str_offset the index in <code>str</code> to start inserting from
+   * @param len the number of characters to insert
+   * @return this <code>StringBuilder</code>
+   * @throws NullPointerException if <code>str</code> is <code>null</code>
+   * @throws StringIndexOutOfBoundsException if any index is out of bounds
+   */
+  public StringBuilder insert(int offset,
+                              char[] str, int str_offset, int len)
+  {
+    super.insert(offset, str, str_offset, len);
+    return this;
+  }
+
+  /**
+   * Insert the <code>String</code> value of the argument into this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param obj the <code>Object</code> to convert and insert
+   * @return this <code>StringBuilder</code>
+   * @exception StringIndexOutOfBoundsException if offset is out of bounds
+   * @see String#valueOf(Object)
+   */
+  public StringBuilder insert(int offset, Object obj)
+  {
+    super.insert(offset, obj);
+    return this;
+  }
+
+  /**
+   * Insert the <code>String</code> argument into this
+   * <code>StringBuilder</code>. If str is null, the String "null" is used
+   * instead.
+   *
+   * @param offset the place to insert in this buffer
+   * @param str the <code>String</code> to insert
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if offset is out of bounds
+   */
+  public StringBuilder insert(int offset, String str)
+  {
+    super.insert(offset, str);
+    return this;
+  }
+
+  /**
+   * Insert the <code>CharSequence</code> argument into this
+   * <code>StringBuilder</code>.  If the sequence is null, the String
+   * "null" is used instead.
+   *
+   * @param offset the place to insert in this buffer
+   * @param sequence the <code>CharSequence</code> to insert
+   * @return this <code>StringBuilder</code>
+   * @throws IndexOutOfBoundsException if offset is out of bounds
+   */
+  public StringBuilder insert(int offset, CharSequence sequence)
+  {
+    super.insert(offset, sequence);
+    return this;
+  }
+
+  /**
+   * Insert a subsequence of the <code>CharSequence</code> argument into this
+   * <code>StringBuilder</code>.  If the sequence is null, the String
+   * "null" is used instead.
+   *
+   * @param offset the place to insert in this buffer
+   * @param sequence the <code>CharSequence</code> to insert
+   * @param start the starting index of the subsequence
+   * @param end one past the ending index of the subsequence
+   * @return this <code>StringBuilder</code>
+   * @throws IndexOutOfBoundsException if offset, start,
+   * or end are out of bounds
+   */
+  public StringBuilder insert(int offset, CharSequence sequence,
+                              int start, int end)
+  {
+    super.insert(offset, sequence, start, end);
+    return this;
+  }
+
+  /**
+   * Insert the <code>char[]</code> argument into this
+   * <code>StringBuilder</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param data the <code>char[]</code> to insert
+   * @return this <code>StringBuilder</code>
+   * @throws NullPointerException if <code>data</code> is <code>null</code>
+   * @throws StringIndexOutOfBoundsException if offset is out of bounds
+   * @see #insert(int, char[], int, int)
+   */
+  public StringBuilder insert(int offset, char[] data)
+  {
+    super.insert(offset, data);
+    return this;
+  }
+
+  /**
+   * Insert the <code>String</code> value of the argument into this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param bool the <code>boolean</code> to convert and insert
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if offset is out of bounds
+   * @see String#valueOf(boolean)
+   */
+  public StringBuilder insert(int offset, boolean bool)
+  {
+    super.insert(offset, bool);
+    return this;
+  }
+
+  /**
+   * Insert the <code>char</code> argument into this <code>StringBuilder</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param ch the <code>char</code> to insert
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if offset is out of bounds
+   */
+  public StringBuilder insert(int offset, char ch)
+  {
+    super.insert(offset, ch);
+    return this;
+  }
+
+  /**
+   * Insert the <code>String</code> value of the argument into this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param inum the <code>int</code> to convert and insert
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if offset is out of bounds
+   * @see String#valueOf(int)
+   */
+  public StringBuilder insert(int offset, int inum)
+  {
+    super.insert(offset, inum);
+    return this;
+  }
+
+  /**
+   * Insert the <code>String</code> value of the argument into this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param lnum the <code>long</code> to convert and insert
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if offset is out of bounds
+   * @see String#valueOf(long)
+   */
+  public StringBuilder insert(int offset, long lnum)
+  {
+    super.insert(offset, lnum);
+    return this;
+  }
+
+  /**
+   * Insert the <code>String</code> value of the argument into this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param fnum the <code>float</code> to convert and insert
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if offset is out of bounds
+   * @see String#valueOf(float)
+   */
+  public StringBuilder insert(int offset, float fnum)
+  {
+    super.insert(offset, fnum);
+    return this;
+  }
+
+  /**
+   * Insert the <code>String</code> value of the argument into this
+   * <code>StringBuilder</code>. Uses <code>String.valueOf()</code> to convert
+   * to <code>String</code>.
+   *
+   * @param offset the place to insert in this buffer
+   * @param dnum the <code>double</code> to convert and insert
+   * @return this <code>StringBuilder</code>
+   * @throws StringIndexOutOfBoundsException if offset is out of bounds
+   * @see String#valueOf(double)
+   */
+  public StringBuilder insert(int offset, double dnum)
+  {
+    super.insert(offset, dnum);
+    return this;
+  }
+
+  /**
+   * Reverse the characters in this StringBuilder. The same sequence of
+   * characters exists, but in the reverse index ordering.
+   *
+   * @return this <code>StringBuilder</code>
+   */
+  public StringBuilder reverse()
+  {
+    super.reverse();
+    return this;
+  }
+
+  /**
+   * Convert this <code>StringBuilder</code> to a <code>String</code>. The
+   * String is composed of the characters currently in this StringBuilder. Note
+   * that the result is a copy, and that future modifications to this buffer
+   * do not affect the String.
+   *
+   * @return the characters in this StringBuilder
+   */
+  public String toString()
+  {
+    return new String(this);
+  }
+
+}