MemoryExtensions.LastIndexOf Method
Definition
Important
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Overloads
| LastIndexOf(ReadOnlySpan<Char>, ReadOnlySpan<Char>, StringComparison) |
Reports the zero-based index of the last occurrence of the specified |
| LastIndexOf<T>(ReadOnlySpan<T>, ReadOnlySpan<T>) |
Searches for the specified sequence and returns the index of its last occurrence. |
| LastIndexOf<T>(ReadOnlySpan<T>, T) |
Searches for the specified value and returns the index of its last occurrence. |
| LastIndexOf<T>(Span<T>, ReadOnlySpan<T>) |
Searches for the specified sequence and returns the index of its last occurrence. |
| LastIndexOf<T>(Span<T>, T) |
Searches for the specified value and returns the index of its last occurrence. |
| LastIndexOf<T>(ReadOnlySpan<T>, ReadOnlySpan<T>, IEqualityComparer<T>) |
Searches for the specified sequence and returns the index of its last occurrence. If not found, returns -1. |
| LastIndexOf<T>(ReadOnlySpan<T>, T, IEqualityComparer<T>) |
Searches for the specified value and returns the index of its last occurrence. If not found, returns -1. |
LastIndexOf(ReadOnlySpan<Char>, ReadOnlySpan<Char>, StringComparison)
Reports the zero-based index of the last occurrence of the specified value in the current span.
public:
[System::Runtime::CompilerServices::Extension]
static int LastIndexOf(ReadOnlySpan<char> span, ReadOnlySpan<char> value, StringComparison comparisonType);public static int LastIndexOf(this ReadOnlySpan<char> span, ReadOnlySpan<char> value, StringComparison comparisonType);static member LastIndexOf : ReadOnlySpan<char> * ReadOnlySpan<char> * StringComparison -> int<Extension()>
Public Function LastIndexOf (span As ReadOnlySpan(Of Char), value As ReadOnlySpan(Of Char), comparisonType As StringComparison) As IntegerParameters
- span
- ReadOnlySpan<Char>
The source span.
- value
- ReadOnlySpan<Char>
The value to seek within the source span.
- comparisonType
- StringComparison
An enumeration value that determines how span and value are compared.
Returns
The index of the last occurrence of the value in the span.
Applies to
LastIndexOf<T>(ReadOnlySpan<T>, ReadOnlySpan<T>)
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
Searches for the specified sequence and returns the index of its last occurrence.
public:
generic <typename T>
where T : IEquatable<T>[System::Runtime::CompilerServices::Extension]
static int LastIndexOf(ReadOnlySpan<T> span, ReadOnlySpan<T> value);public static int LastIndexOf<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>;static member LastIndexOf : ReadOnlySpan<'T (requires 'T :> IEquatable<'T>)> * ReadOnlySpan<'T (requires 'T :> IEquatable<'T>)> -> int (requires 'T :> IEquatable<'T>)<Extension()>
Public Function LastIndexOf(Of T As IEquatable(Of T)) (span As ReadOnlySpan(Of T), value As ReadOnlySpan(Of T)) As IntegerType Parameters
- T
The type of the span and value.
Parameters
- span
- ReadOnlySpan<T>
The span to search.
- value
- ReadOnlySpan<T>
The sequence to search for.
Returns
The index of the last occurrence of the value in the span. If not found, returns -1.
Remarks
Values are compared using IEquatable{T}.Equals(T).
Applies to
LastIndexOf<T>(ReadOnlySpan<T>, T)
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
Searches for the specified value and returns the index of its last occurrence.
public:
generic <typename T>
where T : IEquatable<T>[System::Runtime::CompilerServices::Extension]
static int LastIndexOf(ReadOnlySpan<T> span, T value);public static int LastIndexOf<T>(this ReadOnlySpan<T> span, T value) where T : IEquatable<T>;static member LastIndexOf : ReadOnlySpan<'T (requires 'T :> IEquatable<'T>)> * 'T -> int (requires 'T :> IEquatable<'T>)<Extension()>
Public Function LastIndexOf(Of T As IEquatable(Of T)) (span As ReadOnlySpan(Of T), value As T) As IntegerType Parameters
- T
The type of the span and value.
Parameters
- span
- ReadOnlySpan<T>
The span to search.
- value
- T
The value to search for.
Returns
The index of the last occurrence of the value in the span. If not found, returns -1.
Remarks
Values are compared using IEquatable{T}.Equals(T).
Applies to
LastIndexOf<T>(Span<T>, ReadOnlySpan<T>)
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
Searches for the specified sequence and returns the index of its last occurrence.
public:
generic <typename T>
where T : IEquatable<T>[System::Runtime::CompilerServices::Extension]
static int LastIndexOf(Span<T> span, ReadOnlySpan<T> value);[System.Runtime.CompilerServices.OverloadResolutionPriority(-1)]
public static int LastIndexOf<T>(this Span<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>;public static int LastIndexOf<T>(this Span<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>;[<System.Runtime.CompilerServices.OverloadResolutionPriority(-1)>]
static member LastIndexOf : Span<'T (requires 'T :> IEquatable<'T>)> * ReadOnlySpan<'T (requires 'T :> IEquatable<'T>)> -> int (requires 'T :> IEquatable<'T>)static member LastIndexOf : Span<'T (requires 'T :> IEquatable<'T>)> * ReadOnlySpan<'T (requires 'T :> IEquatable<'T>)> -> int (requires 'T :> IEquatable<'T>)<Extension()>
Public Function LastIndexOf(Of T As IEquatable(Of T)) (span As Span(Of T), value As ReadOnlySpan(Of T)) As IntegerType Parameters
- T
The type of the span and value.
Parameters
- span
- Span<T>
The span to search.
- value
- ReadOnlySpan<T>
The sequence to search for.
Returns
The index of the last occurrence of the value in the span. If not found, returns -1.
- Attributes
Remarks
Values are compared using IEquatable{T}.Equals(T).
Applies to
LastIndexOf<T>(Span<T>, T)
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
- Source:
- MemoryExtensions.cs
Searches for the specified value and returns the index of its last occurrence.
public:
generic <typename T>
where T : IEquatable<T>[System::Runtime::CompilerServices::Extension]
static int LastIndexOf(Span<T> span, T value);[System.Runtime.CompilerServices.OverloadResolutionPriority(-1)]
public static int LastIndexOf<T>(this Span<T> span, T value) where T : IEquatable<T>;public static int LastIndexOf<T>(this Span<T> span, T value) where T : IEquatable<T>;[<System.Runtime.CompilerServices.OverloadResolutionPriority(-1)>]
static member LastIndexOf : Span<'T (requires 'T :> IEquatable<'T>)> * 'T -> int (requires 'T :> IEquatable<'T>)static member LastIndexOf : Span<'T (requires 'T :> IEquatable<'T>)> * 'T -> int (requires 'T :> IEquatable<'T>)<Extension()>
Public Function LastIndexOf(Of T As IEquatable(Of T)) (span As Span(Of T), value As T) As IntegerType Parameters
- T
The type of the span and value.
Parameters
- span
- Span<T>
The span to search.
- value
- T
The value to search for.
Returns
The index of the last occurrence of the value in the span. If not found, returns -1.
- Attributes
Remarks
Values are compared using IEquatable{T}.Equals(T).
Applies to
LastIndexOf<T>(ReadOnlySpan<T>, ReadOnlySpan<T>, IEqualityComparer<T>)
- Source:
- MemoryExtensions.cs
Searches for the specified sequence and returns the index of its last occurrence. If not found, returns -1.
public static int LastIndexOf<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> value, System.Collections.Generic.IEqualityComparer<T>? comparer = default);static member LastIndexOf : ReadOnlySpan<'T> * ReadOnlySpan<'T> * System.Collections.Generic.IEqualityComparer<'T> -> int<Extension()>
Public Function LastIndexOf(Of T) (span As ReadOnlySpan(Of T), value As ReadOnlySpan(Of T), Optional comparer As IEqualityComparer(Of T) = Nothing) As IntegerType Parameters
- T
Parameters
- span
- ReadOnlySpan<T>
The span to search.
- value
- ReadOnlySpan<T>
The sequence to search for.
- comparer
- IEqualityComparer<T>
The IEqualityComparer<T> implementation to use when comparing elements, or null to use the default IEqualityComparer<T> for the type of an element.
Returns
Remarks
Values are compared using IEquatable{T}.Equals(T).
Applies to
LastIndexOf<T>(ReadOnlySpan<T>, T, IEqualityComparer<T>)
- Source:
- MemoryExtensions.cs
Searches for the specified value and returns the index of its last occurrence. If not found, returns -1.
public static int LastIndexOf<T>(this ReadOnlySpan<T> span, T value, System.Collections.Generic.IEqualityComparer<T>? comparer = default);static member LastIndexOf : ReadOnlySpan<'T> * 'T * System.Collections.Generic.IEqualityComparer<'T> -> int<Extension()>
Public Function LastIndexOf(Of T) (span As ReadOnlySpan(Of T), value As T, Optional comparer As IEqualityComparer(Of T) = Nothing) As IntegerType Parameters
- T
Parameters
- span
- ReadOnlySpan<T>
The span to search.
- value
- T
The value to search for.
- comparer
- IEqualityComparer<T>
The IEqualityComparer<T> implementation to use when comparing elements, or null to use the default IEqualityComparer<T> for the type of an element.
Returns
Remarks
Values are compared using IEquatable{T}.Equals(T).
