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fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and priority queues with a small memory footprint and fast access and insertion; provides also big (64-bit) arrays, sets and lists, and fast, practical I/O classes for binary and text files.

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/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   .  */
/* This header is separate from features.h so that the compiler can
   include it implicitly at the start of every compilation.  It must
   not itself include  or any other header that includes
    because the implicit include comes before any feature
   test macros that may be defined in a source file before it first
   explicitly includes a system header.  GCC knows the name of this
   header in order to preinclude it.  */
/* glibc's intent is to support the IEC 559 math functionality, real
   and complex.  If the GCC (4.9 and later) predefined macros
   specifying compiler intent are available, use them to determine
   whether the overall intent is to support these features; otherwise,
   presume an older compiler has intent to support these features and
   define these macros by default.  */
/* wchar_t uses Unicode 9.0.0.  Version 9.0 of the Unicode Standard is
   synchronized with ISO/IEC 10646:2014, fourth edition, plus
   Amd. 1  and Amd. 2 and 273 characters from forthcoming  10646, fifth edition.
   (Amd. 2 was published 2016-05-01,
   see https://www.iso.org/obp/ui/#iso:std:iso-iec:10646:ed-4:v1:amd:2:v1:en) */
/* We do not support C11 .  */
/* 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) */
/* Primitive-type-only definitions (values) */
/*		 
 * Copyright (C) 2002-2016 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 it.unimi.dsi.fastutil.objects.ObjectSortedSet;
import it.unimi.dsi.fastutil.objects.ObjectSortedSets;
import java.util.Comparator;
import java.util.Map;
import java.util.SortedMap;
import java.util.NoSuchElementException;

/**
 * A class providing static methods and objects that do useful things with
 * type-specific sorted maps.
 *
 * @see java.util.Collections
 */
public class Char2FloatSortedMaps {
	private Char2FloatSortedMaps() {
	}

	/**
	 * Returns a comparator for entries based on a given comparator on keys.
	 *
	 * @param comparator
	 *            a comparator on keys.
	 * @return the associated comparator on entries.
	 */
	public static Comparator> entryComparator(final CharComparator comparator) {
		return new Comparator>() {
			public int compare(Map.Entry x, Map.Entry y) {
				return comparator.compare(x.getKey(), y.getKey());
			}
		};
	}

	/**
	 * An immutable class representing an empty type-specific sorted map.
	 *
	 * 

* This class may be useful to implement your own in case you subclass a * type-specific sorted map. */ public static class EmptySortedMap extends Char2FloatMaps.EmptyMap implements Char2FloatSortedMap, java.io.Serializable, Cloneable { private static final long serialVersionUID = -7046029254386353129L; protected EmptySortedMap() { } public CharComparator comparator() { return null; } @SuppressWarnings("unchecked") public ObjectSortedSet char2FloatEntrySet() { return ObjectSortedSets.EMPTY_SET; } @SuppressWarnings("unchecked") public ObjectSortedSet> entrySet() { return ObjectSortedSets.EMPTY_SET; } public CharSortedSet keySet() { return CharSortedSets.EMPTY_SET; } public Char2FloatSortedMap subMap(final char from, final char to) { return EMPTY_MAP; } public Char2FloatSortedMap headMap(final char to) { return EMPTY_MAP; } public Char2FloatSortedMap tailMap(final char from) { return EMPTY_MAP; } public char firstCharKey() { throw new NoSuchElementException(); } public char lastCharKey() { throw new NoSuchElementException(); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Char2FloatSortedMap headMap(Character oto) { return headMap(((oto).charValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Char2FloatSortedMap tailMap(Character ofrom) { return tailMap(((ofrom).charValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Char2FloatSortedMap subMap(Character ofrom, Character oto) { return subMap(((ofrom).charValue()), ((oto).charValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Character firstKey() { return (Character.valueOf(firstCharKey())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Character lastKey() { return (Character.valueOf(lastCharKey())); } } /** * An empty sorted map (immutable). It is serializable and cloneable. */ public static final EmptySortedMap EMPTY_MAP = new EmptySortedMap(); /** * An immutable class representing a type-specific singleton sorted map. * *

* This class may be useful to implement your own in case you subclass a * type-specific sorted map. */ public static class Singleton extends Char2FloatMaps.Singleton implements Char2FloatSortedMap, java.io.Serializable, Cloneable { private static final long serialVersionUID = -7046029254386353129L; protected final CharComparator comparator; protected Singleton(final char key, final float value, CharComparator comparator) { super(key, value); this.comparator = comparator; } protected Singleton(final char key, final float value) { this(key, value, null); } final int compare(final char k1, final char k2) { return comparator == null ? (Character.compare((k1), (k2))) : comparator.compare(k1, k2); } public CharComparator comparator() { return comparator; } public ObjectSortedSet char2FloatEntrySet() { if (entries == null) entries = ObjectSortedSets.singleton((Char2FloatMap.Entry) new SingletonEntry(), (Comparator) entryComparator(comparator)); return (ObjectSortedSet) entries; } @SuppressWarnings({ "rawtypes", "unchecked" }) public ObjectSortedSet> entrySet() { return (ObjectSortedSet) char2FloatEntrySet(); } public CharSortedSet keySet() { if (keys == null) keys = CharSortedSets.singleton(key, comparator); return (CharSortedSet) keys; } public Char2FloatSortedMap subMap(final char from, final char to) { if (compare(from, key) <= 0 && compare(key, to) < 0) return this; return EMPTY_MAP; } public Char2FloatSortedMap headMap(final char to) { if (compare(key, to) < 0) return this; return EMPTY_MAP; } public Char2FloatSortedMap tailMap(final char from) { if (compare(from, key) <= 0) return this; return EMPTY_MAP; } public char firstCharKey() { return key; } public char lastCharKey() { return key; } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Char2FloatSortedMap headMap(Character oto) { return headMap(((oto).charValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Char2FloatSortedMap tailMap(Character ofrom) { return tailMap(((ofrom).charValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Char2FloatSortedMap subMap(Character ofrom, Character oto) { return subMap(((ofrom).charValue()), ((oto).charValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Character firstKey() { return (Character.valueOf(firstCharKey())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Character lastKey() { return (Character.valueOf(lastCharKey())); } } /** * Returns a type-specific immutable sorted map containing only the * specified pair. The returned sorted map is serializable and cloneable. * *

* Note that albeit the returned map is immutable, its default return value * may be changed. * * @param key * the only key of the returned sorted map. * @param value * the only value of the returned sorted map. * @return a type-specific immutable sorted map containing just the pair * <key,value>. */ public static Char2FloatSortedMap singleton(final Character key, Float value) { return new Singleton(((key).charValue()), ((value).floatValue())); } /** * RETURNS a type-specific immutable sorted map containing only the * specified pair. The returned sorted map is serializable and cloneable. * *

* Note that albeit the returned map is immutable, its default return value * may be changed. * * @param key * the only key of the returned sorted map. * @param value * the only value of the returned sorted map. * @param comparator * the comparator to use in the returned sorted map. * @return a type-specific immutable sorted map containing just the pair * <key,value>. */ public static Char2FloatSortedMap singleton(final Character key, Float value, CharComparator comparator) { return new Singleton(((key).charValue()), ((value).floatValue()), comparator); } /** * Returns a type-specific immutable sorted map containing only the * specified pair. The returned sorted map is serializable and cloneable. * *

* Note that albeit the returned map is immutable, its default return value * may be changed. * * @param key * the only key of the returned sorted map. * @param value * the only value of the returned sorted map. * @return a type-specific immutable sorted map containing just the pair * <key,value>. */ public static Char2FloatSortedMap singleton(final char key, final float value) { return new Singleton(key, value); } /** * Returns a type-specific immutable sorted map containing only the * specified pair. The returned sorted map is serializable and cloneable. * *

* Note that albeit the returned map is immutable, its default return value * may be changed. * * @param key * the only key of the returned sorted map. * @param value * the only value of the returned sorted map. * @param comparator * the comparator to use in the returned sorted map. * @return a type-specific immutable sorted map containing just the pair * <key,value>. */ public static Char2FloatSortedMap singleton(final char key, final float value, CharComparator comparator) { return new Singleton(key, value, comparator); } /** A synchronized wrapper class for sorted maps. */ public static class SynchronizedSortedMap extends Char2FloatMaps.SynchronizedMap implements Char2FloatSortedMap, java.io.Serializable { private static final long serialVersionUID = -7046029254386353129L; protected final Char2FloatSortedMap sortedMap; protected SynchronizedSortedMap(final Char2FloatSortedMap m, final Object sync) { super(m, sync); sortedMap = m; } protected SynchronizedSortedMap(final Char2FloatSortedMap m) { super(m); sortedMap = m; } public CharComparator comparator() { synchronized (sync) { return sortedMap.comparator(); } } public ObjectSortedSet char2FloatEntrySet() { if (entries == null) entries = ObjectSortedSets.synchronize(sortedMap.char2FloatEntrySet(), sync); return (ObjectSortedSet) entries; } @SuppressWarnings({ "rawtypes", "unchecked" }) public ObjectSortedSet> entrySet() { return (ObjectSortedSet) char2FloatEntrySet(); } public CharSortedSet keySet() { if (keys == null) keys = CharSortedSets.synchronize(sortedMap.keySet(), sync); return (CharSortedSet) keys; } public Char2FloatSortedMap subMap(final char from, final char to) { return new SynchronizedSortedMap(sortedMap.subMap(from, to), sync); } public Char2FloatSortedMap headMap(final char to) { return new SynchronizedSortedMap(sortedMap.headMap(to), sync); } public Char2FloatSortedMap tailMap(final char from) { return new SynchronizedSortedMap(sortedMap.tailMap(from), sync); } public char firstCharKey() { synchronized (sync) { return sortedMap.firstCharKey(); } } public char lastCharKey() { synchronized (sync) { return sortedMap.lastCharKey(); } } public Character firstKey() { synchronized (sync) { return sortedMap.firstKey(); } } public Character lastKey() { synchronized (sync) { return sortedMap.lastKey(); } } public Char2FloatSortedMap subMap(final Character from, final Character to) { return new SynchronizedSortedMap(sortedMap.subMap(from, to), sync); } public Char2FloatSortedMap headMap(final Character to) { return new SynchronizedSortedMap(sortedMap.headMap(to), sync); } public Char2FloatSortedMap tailMap(final Character from) { return new SynchronizedSortedMap(sortedMap.tailMap(from), sync); } } /** * Returns a synchronized type-specific sorted map backed by the given * type-specific sorted map. * * @param m * the sorted map to be wrapped in a synchronized sorted map. * @return a synchronized view of the specified sorted map. * @see java.util.Collections#synchronizedSortedMap(SortedMap) */ public static Char2FloatSortedMap synchronize(final Char2FloatSortedMap m) { return new SynchronizedSortedMap(m); } /** * Returns a synchronized type-specific sorted map backed by the given * type-specific sorted map, using an assigned object to synchronize. * * @param m * the sorted map to be wrapped in a synchronized sorted map. * @param sync * an object that will be used to synchronize the access to the * sorted sorted map. * @return a synchronized view of the specified sorted map. * @see java.util.Collections#synchronizedSortedMap(SortedMap) */ public static Char2FloatSortedMap synchronize(final Char2FloatSortedMap m, final Object sync) { return new SynchronizedSortedMap(m, sync); } /** An unmodifiable wrapper class for sorted maps. */ public static class UnmodifiableSortedMap extends Char2FloatMaps.UnmodifiableMap implements Char2FloatSortedMap, java.io.Serializable { private static final long serialVersionUID = -7046029254386353129L; protected final Char2FloatSortedMap sortedMap; protected UnmodifiableSortedMap(final Char2FloatSortedMap m) { super(m); sortedMap = m; } public CharComparator comparator() { return sortedMap.comparator(); } public ObjectSortedSet char2FloatEntrySet() { if (entries == null) entries = ObjectSortedSets.unmodifiable(sortedMap.char2FloatEntrySet()); return (ObjectSortedSet) entries; } @SuppressWarnings({ "rawtypes", "unchecked" }) public ObjectSortedSet> entrySet() { return (ObjectSortedSet) char2FloatEntrySet(); } public CharSortedSet keySet() { if (keys == null) keys = CharSortedSets.unmodifiable(sortedMap.keySet()); return (CharSortedSet) keys; } public Char2FloatSortedMap subMap(final char from, final char to) { return new UnmodifiableSortedMap(sortedMap.subMap(from, to)); } public Char2FloatSortedMap headMap(final char to) { return new UnmodifiableSortedMap(sortedMap.headMap(to)); } public Char2FloatSortedMap tailMap(final char from) { return new UnmodifiableSortedMap(sortedMap.tailMap(from)); } public char firstCharKey() { return sortedMap.firstCharKey(); } public char lastCharKey() { return sortedMap.lastCharKey(); } public Character firstKey() { return sortedMap.firstKey(); } public Character lastKey() { return sortedMap.lastKey(); } public Char2FloatSortedMap subMap(final Character from, final Character to) { return new UnmodifiableSortedMap(sortedMap.subMap(from, to)); } public Char2FloatSortedMap headMap(final Character to) { return new UnmodifiableSortedMap(sortedMap.headMap(to)); } public Char2FloatSortedMap tailMap(final Character from) { return new UnmodifiableSortedMap(sortedMap.tailMap(from)); } } /** * Returns an unmodifiable type-specific sorted map backed by the given * type-specific sorted map. * * @param m * the sorted map to be wrapped in an unmodifiable sorted map. * @return an unmodifiable view of the specified sorted map. * @see java.util.Collections#unmodifiableSortedMap(SortedMap) */ public static Char2FloatSortedMap unmodifiable(final Char2FloatSortedMap m) { return new UnmodifiableSortedMap(m); } }





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