Class EnumerableEqualityComparer<T>

Namespace

Utils.Collections

Assembly

Utils.dll

A comparer for enumerables that allows comparison of sequences based on custom or default equality logic for each element.

If both sequences implement IReadOnlyList<T>, the comparison first checks Count for an early exit. Uses Span<T> when applicable for performance.

public sealed class EnumerableEqualityComparer<T> : IEqualityComparer<IEnumerable<T>>

Type Parameters

T

The type of elements in the enumerable.

Inheritance

object

EnumerableEqualityComparer<T>

Implements

IEqualityComparer<IEnumerable<T>>

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Extension Methods

DataUtils.ToDbValue(object?)

MathEx.Clamp<T>(T, T, T, IComparer<T>)

FluentExtensions.Failure<T>(T)

FluentExtensions.IsEqualTo<T, CT>(T, CT)

FluentExtensions.IsGreaterOrEqualsThan<T, CT>(T, CT)

FluentExtensions.IsGreaterThan<T, CT>(T, CT)

FluentExtensions.IsIn<T>(T, params T[])

FluentExtensions.IsLowerOrEqualsThan<T, CT>(T, CT)

FluentExtensions.IsLowerThan<T, CT>(T, CT)

FluentExtensions.IsNotIn<T>(T, params T[])

FluentExtensions.IsNotNull<T>(T)

FluentExtensions.IsNull<T>(T)

FluentExtensions.Success<T>(T)

FluentExtensions.Test<T>(T, Func<T, bool>)

ObjectUtils.Between<T>(T, IComparer<T>, T, T)

ObjectUtils.Between<T>(T, IComparer<T>, T, T, bool, bool)

ObjectUtils.DoAsync<T, Result>(T, Func<T, Task<Result>>, Func<Task<Result>>)

ObjectUtils.DoAsync<T, Result>(T, Func<T, Task<Result>>, Result)

ObjectUtils.DoAsync<T, Result>(T, Func<T, Result>, Func<Result>)

ObjectUtils.DoAsync<T, Result>(T, Func<T, Result>, Result)

ObjectUtils.Do<T, Result>(T, Func<T, Result>, Func<Result>)

ObjectUtils.Do<T, Result>(T, Func<T, Result>, Result)

ObjectUtils.In<T>(T, params T[])

ObjectUtils.NotIn<T>(T, params T[])

Validations.ArgMustBe<T>(T, Func<T, bool>, string, string)

Validations.ArgMustNotBe<T>(T, Func<T, bool>, string, string)

Validations.Arg<T>(T, string)

Validations.ValueMustNotBeNull<T>(T, string)

Validations.Variable<T>(T, string)

Constructors

EnumerableEqualityComparer(IEqualityComparer<T>)

Initializes a new instance of the EnumerableEqualityComparer<T> class using a provided element equality comparer.

public EnumerableEqualityComparer(IEqualityComparer<T> elementComparer)

Parameters

elementComparer IEqualityComparer<T>

An equality comparer for elements of type T.

EnumerableEqualityComparer(Func<T, T, bool>, Func<T, int>)

Initializes a new instance of the EnumerableEqualityComparer<T> class using a provided element equality comparer.

public EnumerableEqualityComparer(Func<T, T, bool> comparer, Func<T, int> hasher = null)

Parameters

comparer Func<T, T, bool>

hasher Func<T, int>

Properties

Default

A thread-safe, cached instance of EnumerableEqualityComparer<T> using the default comparison logic for elements.

public static EnumerableEqualityComparer<T> Default { get; }

Property Value

EnumerableEqualityComparer<T>

Methods

Equals(IEnumerable<T>?, IEnumerable<T>?)

Determines whether the specified objects are equal.

public bool Equals(IEnumerable<T>? x, IEnumerable<T>? y)

Parameters

x IEnumerable<T>

The first object of type T to compare.

y IEnumerable<T>

The second object of type T to compare.

Returns

bool

true if the specified objects are equal; otherwise, false.

GetHashCode(IEnumerable<T>)

Returns a hash code for the specified object.

public int GetHashCode(IEnumerable<T> obj)

Parameters

obj IEnumerable<T>

The object for which a hash code is to be returned.

Returns

int

A hash code for the specified object.

Exceptions

ArgumentNullException

The type of obj is a reference type and obj is null.