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/* Generic definitions */
/* Assertions (useful to generate conditional code) */
/* Current type and class (and size, if applicable) */
/* Value methods */
/* Interfaces (keys) */
/* Interfaces (values) */
/* Abstract implementations (keys) */
/* Abstract implementations (values) */
/* Static containers (keys) */
/* Static containers (values) */
/* Implementations */
/* Synchronized wrappers */
/* Unmodifiable wrappers */
/* Other wrappers */
/* Methods (keys) */
/* Methods (values) */
/* Methods (keys/values) */
/* Methods that have special names depending on keys (but the special names depend on values) */
/* Equality */
/* Object/Reference-only definitions (keys) */
/* Primitive-type-only definitions (keys) */
/* Object/Reference-only definitions (values) */
/*		 
 * Copyright (C) 2002-2013 Sebastiano Vigna 
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. 
 */
package it.unimi.dsi.fastutil.chars;
import java.util.Set;
/**  An abstract class providing basic methods for sets implementing a type-specific interface. */
public abstract class AbstractCharSet extends AbstractCharCollection implements Cloneable, CharSet {
 protected AbstractCharSet() {}
 public abstract CharIterator iterator();
 public boolean equals( final Object o ) {
  if ( o == this ) return true;
  if ( !( o instanceof Set ) ) return false;
  Set s = (Set) o;
  if ( s.size() != size() ) return false;
  return containsAll(s);
 }
 /** Returns a hash code for this set.
	 *
	 * The hash code of a set is computed by summing the hash codes of
	 * its elements.
	 *
	 * @return a hash code for this set.
	 */
 public int hashCode() {
  int h = 0, n = size();
  CharIterator i = iterator();
  char k;
  while( n-- != 0 ) {
   k = i.nextChar(); // We need k because KEY2JAVAHASH() is a macro with repeated evaluation.
   h += (k);
  }
  return h;
 }
 public boolean remove( char k ) {
  throw new UnsupportedOperationException();
 }
 /** Delegates to remove().
	 *
	 * @param k the element to be removed.
	 * @return true if the set was modified.
	 */
 public boolean rem( char k ) {
  return remove( k );
 }
 /** Delegates to the corresponding type-specific method. */
 public boolean remove( final Object o ) {
  return remove( ((((Character)(o)).charValue())) );
 }
}