ParallelEnumerable.SequenceEqual Method

Definition

Namespace:

System.Linq

Assembly:

System.Linq.Parallel.dll

Determines whether two parallel sequences are equal by comparing the elements by using an equality comparer for their type.

Overloads

SequenceEqual<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>)	Obsolete. This SequenceEqual overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
SequenceEqual<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)	Determines whether two parallel sequences are equal by comparing the elements by using the default equality comparer for their type.
SequenceEqual<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Obsolete. This SequenceEqual overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
SequenceEqual<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>, IEqualityComparer<TSource>)	Determines whether two parallel sequences are equal by comparing their elements by using a specified IEqualityComparer{T}.

SequenceEqual<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>)

Source:

ParallelEnumerable.cs

Caution

The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.

This SequenceEqual overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static bool SequenceEqual(System::Linq::ParallelQuery<TSource> ^ first, System::Collections::Generic::IEnumerable<TSource> ^ second);

[System.Obsolete("The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.")]
public static bool SequenceEqual<TSource> (this System.Linq.ParallelQuery<TSource> first, System.Collections.Generic.IEnumerable<TSource> second);

[<System.Obsolete("The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.")>]
static member SequenceEqual : System.Linq.ParallelQuery<'Source> * seq<'Source> -> bool

<Extension()>
Public Function SequenceEqual(Of TSource) (first As ParallelQuery(Of TSource), second As IEnumerable(Of TSource)) As Boolean

Type Parameters

TSource

This type parameter is not used.

Parameters

first

ParallelQuery<TSource>

This parameter is not used.

second

IEnumerable<TSource>

This parameter is not used.

Returns

Boolean

This overload always throws a NotSupportedException.

Attributes

ObsoleteAttribute

Exceptions

NotSupportedException

Thrown every time this method is called.

Remarks

This overload exists to disallow usage of SequenceEqual with a left data source of type ParallelQuery<TSource> and a right data source of type IEnumerable<T>. Otherwise, the SequenceEqual operator would appear to be binding to the parallel implementation, but would in reality bind to the sequential implementation.

See also

• Parallel LINQ (PLINQ)

SequenceEqual<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)

Source:

ParallelEnumerable.cs

Determines whether two parallel sequences are equal by comparing the elements by using the default equality comparer for their type.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static bool SequenceEqual(System::Linq::ParallelQuery<TSource> ^ first, System::Linq::ParallelQuery<TSource> ^ second);

public static bool SequenceEqual<TSource> (this System.Linq.ParallelQuery<TSource> first, System.Linq.ParallelQuery<TSource> second);

static member SequenceEqual : System.Linq.ParallelQuery<'Source> * System.Linq.ParallelQuery<'Source> -> bool

<Extension()>
Public Function SequenceEqual(Of TSource) (first As ParallelQuery(Of TSource), second As ParallelQuery(Of TSource)) As Boolean

Type Parameters

TSource

The type of the elements of the input sequences.

Parameters

first

ParallelQuery<TSource>

A sequence to compare to second.

second

ParallelQuery<TSource>

A sequence to compare to the first input sequence.

Returns

Boolean

true if the two source sequences are of equal length and their corresponding elements are equal according to the default equality comparer for their type; otherwise, false.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

first or second is a null reference (Nothing in Visual Basic).

AggregateException

One or more exceptions occurred during the evaluation of the query.

See also

• Parallel LINQ (PLINQ)

SequenceEqual<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Source:

ParallelEnumerable.cs

Caution

The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.

This SequenceEqual overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static bool SequenceEqual(System::Linq::ParallelQuery<TSource> ^ first, System::Collections::Generic::IEnumerable<TSource> ^ second, System::Collections::Generic::IEqualityComparer<TSource> ^ comparer);

[System.Obsolete("The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.")]
public static bool SequenceEqual<TSource> (this System.Linq.ParallelQuery<TSource> first, System.Collections.Generic.IEnumerable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource>? comparer);

[<System.Obsolete("The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.")>]
static member SequenceEqual : System.Linq.ParallelQuery<'Source> * seq<'Source> * System.Collections.Generic.IEqualityComparer<'Source> -> bool

<Extension()>
Public Function SequenceEqual(Of TSource) (first As ParallelQuery(Of TSource), second As IEnumerable(Of TSource), comparer As IEqualityComparer(Of TSource)) As Boolean

Type Parameters

TSource

This type parameter is not used.

Parameters

first

ParallelQuery<TSource>

This parameter is not used.

second

IEnumerable<TSource>

This parameter is not used.

comparer

IEqualityComparer<TSource>

This parameter is not used.

Returns

Boolean

This overload always throws a NotSupportedException.

Attributes

ObsoleteAttribute

Exceptions

NotSupportedException

Thrown every time this method is called.

Remarks

This overload exists to disallow usage of SequenceEqual with a left data source of type ParallelQuery<TSource> and a right data source of type IEnumerable<T>. Otherwise, the SequenceEqual operator would appear to be binding to the parallel implementation, but would in reality bind to sequential implementation.

See also

• Parallel LINQ (PLINQ)

SequenceEqual<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>, IEqualityComparer<TSource>)

Source:

ParallelEnumerable.cs

Determines whether two parallel sequences are equal by comparing their elements by using a specified IEqualityComparer{T}.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static bool SequenceEqual(System::Linq::ParallelQuery<TSource> ^ first, System::Linq::ParallelQuery<TSource> ^ second, System::Collections::Generic::IEqualityComparer<TSource> ^ comparer);

public static bool SequenceEqual<TSource> (this System.Linq.ParallelQuery<TSource> first, System.Linq.ParallelQuery<TSource> second, System.Collections.Generic.IEqualityComparer<TSource>? comparer);

static member SequenceEqual : System.Linq.ParallelQuery<'Source> * System.Linq.ParallelQuery<'Source> * System.Collections.Generic.IEqualityComparer<'Source> -> bool

<Extension()>
Public Function SequenceEqual(Of TSource) (first As ParallelQuery(Of TSource), second As ParallelQuery(Of TSource), comparer As IEqualityComparer(Of TSource)) As Boolean

Type Parameters

TSource

The type of the elements of the input sequences.

Parameters

first

ParallelQuery<TSource>

A sequence to compare to second.

second

ParallelQuery<TSource>

A sequence to compare to the first input sequence.

comparer

IEqualityComparer<TSource>

An IEqualityComparer<T> to use to compare elements.

Returns

Boolean

true if the two source sequences are of equal length and their corresponding elements are equal according to the default equality comparer for their type; otherwise, false.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

first or second is a null reference (Nothing in Visual Basic).

AggregateException

One or more exceptions occurred during the evaluation of the query.

See also

• Parallel LINQ (PLINQ)