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Kotlin Common Standard Library
There is a newer version: 2.1.0-RC
/*
 * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
 * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
 */

@file:kotlin.jvm.JvmMultifileClass
@file:kotlin.jvm.JvmName("SetsKt")

package kotlin.collections

//
// NOTE: THIS FILE IS AUTO-GENERATED by the GenerateStandardLib.kt
// See: https://github.com/JetBrains/kotlin/tree/master/libraries/stdlib
//

import kotlin.contracts.*
import kotlin.random.*
import kotlin.ranges.contains
import kotlin.ranges.reversed

/**
 * Returns a set containing all elements of the original set except the given [element].
 * 
 * The returned set preserves the element iteration order of the original set.
 */
public operator fun  Set.minus(element: T): Set {
    val result = LinkedHashSet(mapCapacity(size))
    var removed = false
    return this.filterTo(result) { if (!removed && it == element) { removed = true; false } else true }
}

/**
 * Returns a set containing all elements of the original set except the elements contained in the given [elements] array.
 * 
 * The returned set preserves the element iteration order of the original set.
 */
public operator fun  Set.minus(elements: Array): Set {
    val result = LinkedHashSet(this)
    result.removeAll(elements)
    return result
}

/**
 * Returns a set containing all elements of the original set except the elements contained in the given [elements] collection.
 * 
 * The returned set preserves the element iteration order of the original set.
 */
public operator fun  Set.minus(elements: Iterable): Set {
    val other = elements.convertToListIfNotCollection()
    if (other.isEmpty())
        return this.toSet()
    if (other is Set)
        return this.filterNotTo(LinkedHashSet()) { it in other }
    val result = LinkedHashSet(this)
    result.removeAll(other)
    return result
}

/**
 * Returns a set containing all elements of the original set except the elements contained in the given [elements] sequence.
 * 
 * The returned set preserves the element iteration order of the original set.
 */
public operator fun  Set.minus(elements: Sequence): Set {
    val result = LinkedHashSet(this)
    result.removeAll(elements)
    return result
}

/**
 * Returns a set containing all elements of the original set except the given [element].
 * 
 * The returned set preserves the element iteration order of the original set.
 */
@kotlin.internal.InlineOnly
public inline fun  Set.minusElement(element: T): Set {
    return minus(element)
}

/**
 * Returns a set containing all elements of the original set and then the given [element] if it isn't already in this set.
 * 
 * The returned set preserves the element iteration order of the original set.
 */
public operator fun  Set.plus(element: T): Set {
    val result = LinkedHashSet(mapCapacity(size + 1))
    result.addAll(this)
    result.add(element)
    return result
}

/**
 * Returns a set containing all elements of the original set and the given [elements] array,
 * which aren't already in this set.
 * 
 * The returned set preserves the element iteration order of the original set.
 */
public operator fun  Set.plus(elements: Array): Set {
    val result = LinkedHashSet(mapCapacity(this.size + elements.size))
    result.addAll(this)
    result.addAll(elements)
    return result
}

/**
 * Returns a set containing all elements of the original set and the given [elements] collection,
 * which aren't already in this set.
 * The returned set preserves the element iteration order of the original set.
 */
public operator fun  Set.plus(elements: Iterable): Set {
    val result = LinkedHashSet(mapCapacity(elements.collectionSizeOrNull()?.let { this.size + it } ?: this.size * 2))
    result.addAll(this)
    result.addAll(elements)
    return result
}

/**
 * Returns a set containing all elements of the original set and the given [elements] sequence,
 * which aren't already in this set.
 * 
 * The returned set preserves the element iteration order of the original set.
 */
public operator fun  Set.plus(elements: Sequence): Set {
    val result = LinkedHashSet(mapCapacity(this.size * 2))
    result.addAll(this)
    result.addAll(elements)
    return result
}

/**
 * Returns a set containing all elements of the original set and then the given [element] if it isn't already in this set.
 * 
 * The returned set preserves the element iteration order of the original set.
 */
@kotlin.internal.InlineOnly
public inline fun  Set.plusElement(element: T): Set {
    return plus(element)
}