Class Span

Provides extension methods for type and .

Inheritance
Object
Span
Namespace: DotNext
Assembly: DotNext.dll
Syntax
public static class Span : object

Methods

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BitwiseCompare<T>(Span<T>, Span<T>)

Compares content of the two memory blocks identified by the given spans.

Declaration
public static int BitwiseCompare<T>(this Span<T> first, Span<T> second)

    where T : struct
Parameters
Type Name Description
DotNext.Span<T> first

The first memory span to compare.
DotNext.Span<T> second

The second array to compare.
Returns
Type Description
Int32

Comparison result.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseCompare<T>(ReadOnlySpan<T>, ReadOnlySpan<T>)

Compares content of the two memory blocks identified by the given spans.

Declaration
public static int BitwiseCompare<T>(this ReadOnlySpan<T> first, ReadOnlySpan<T> second)

    where T : struct
Parameters
Type Name Description
ReadOnlySpan<T> first

The first memory span to compare.
ReadOnlySpan<T> second

The second array to compare.
Returns
Type Description
Int32

Comparison result.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseEquals<T>(Span<T>, Span<T>)

Determines whether two memory blocks identified by the given spans contain the same set of elements.

Declaration
public static bool BitwiseEquals<T>(this Span<T> first, Span<T> second)

    where T : struct
Parameters
Type Name Description
DotNext.Span<T> first

The first memory span to compare.
DotNext.Span<T> second

The second memory span to compare.
Returns
Type Description
Boolean

true, if both memory blocks are equal; otherwise, false.
Type Parameters
Name Description
T

The type of elements in the span.
Remarks

This method performs bitwise equality between each pair of elements.

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BitwiseEquals<T>(ReadOnlySpan<T>, ReadOnlySpan<T>)

Determines whether two memory blocks identified by the given spans contain the same set of elements.

Declaration
public static bool BitwiseEquals<T>(this ReadOnlySpan<T> first, ReadOnlySpan<T> second)

    where T : struct
Parameters
Type Name Description
ReadOnlySpan<T> first

The first memory span to compare.
ReadOnlySpan<T> second

The second memory span to compare.
Returns
Type Description
Boolean

true, if both memory blocks are equal; otherwise, false.
Type Parameters
Name Description
T

The type of elements in the span.
Remarks

This method performs bitwise equality between each pair of elements.

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BitwiseHashCode<T>(Span<T>, Boolean)

Computes bitwise hash code for the memory identified by the given span.

Declaration
public static int BitwiseHashCode<T>(this Span<T> span, bool salted = true)

    where T : struct
Parameters
Type Name Description
DotNext.Span<T> span

The span whose content to be hashed.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int32

32-bit hash code of the span content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode<T>(Span<T>, Int32, Func<Int32, Int32, Int32>, Boolean)

Computes bitwise hash code for the memory identified by the given span using custom hash function.

Declaration
public static int BitwiseHashCode<T>(this Span<T> span, int hash, Func<int, int, int> hashFunction, bool salted = true)

    where T : struct
Parameters
Type Name Description
DotNext.Span<T> span

The span whose content to be hashed.
Int32 hash

Initial value of the hash.
DotNext.Func<Int32, Int32, Int32> hashFunction

Custom hashing algorithm.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int32

32-bit hash code of the array content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode<T>(Span<T>, Int32, ValueFunc<Int32, Int32, Int32>, Boolean)

Computes bitwise hash code for the memory identified by the given span using custom hash function.

Declaration
public static int BitwiseHashCode<T>(this Span<T> span, int hash, in ValueFunc<int, int, int> hashFunction, bool salted = true)

    where T : struct
Parameters
Type Name Description
DotNext.Span<T> span

The span whose content to be hashed.
Int32 hash

Initial value of the hash.
ValueFunc<Int32, Int32, Int32> hashFunction

Custom hashing algorithm.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int32

32-bit hash code of the array content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode<T>(ReadOnlySpan<T>, Boolean)

Computes bitwise hash code for the memory identified by the given span.

Declaration
public static int BitwiseHashCode<T>(this ReadOnlySpan<T> span, bool salted = true)

    where T : struct
Parameters
Type Name Description
ReadOnlySpan<T> span

The span whose content to be hashed.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int32

32-bit hash code of the span content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode<T>(ReadOnlySpan<T>, Int32, Func<Int32, Int32, Int32>, Boolean)

Computes bitwise hash code for the memory identified by the given span using custom hash function.

Declaration
public static int BitwiseHashCode<T>(this ReadOnlySpan<T> span, int hash, Func<int, int, int> hashFunction, bool salted = true)

    where T : struct
Parameters
Type Name Description
ReadOnlySpan<T> span

The span whose content to be hashed.
Int32 hash

Initial value of the hash.
DotNext.Func<Int32, Int32, Int32> hashFunction

Custom hashing algorithm.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int32

32-bit hash code of the array content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode<T>(ReadOnlySpan<T>, Int32, ValueFunc<Int32, Int32, Int32>, Boolean)

Computes bitwise hash code for the memory identified by the given span using custom hash function.

Declaration
public static int BitwiseHashCode<T>(this ReadOnlySpan<T> span, int hash, in ValueFunc<int, int, int> hashFunction, bool salted = true)

    where T : struct
Parameters
Type Name Description
ReadOnlySpan<T> span

The span whose content to be hashed.
Int32 hash

Initial value of the hash.
ValueFunc<Int32, Int32, Int32> hashFunction

Custom hashing algorithm.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int32

32-bit hash code of the array content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode64<T>(Span<T>, Boolean)

Computes bitwise hash code for the memory identified by the given span.

Declaration
public static long BitwiseHashCode64<T>(this Span<T> span, bool salted = true)

    where T : struct
Parameters
Type Name Description
DotNext.Span<T> span

The span whose content to be hashed.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int64

64-bit hash code of the span content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode64<T>(Span<T>, Int64, Func<Int64, Int64, Int64>, Boolean)

Computes bitwise hash code for the memory identified by the given span using custom hash function.

Declaration
public static long BitwiseHashCode64<T>(this Span<T> span, long hash, Func<long, long, long> hashFunction, bool salted = true)

    where T : struct
Parameters
Type Name Description
DotNext.Span<T> span

The span whose content to be hashed.
Int64 hash

Initial value of the hash.
DotNext.Func<Int64, Int64, Int64> hashFunction

Custom hashing algorithm.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int64

64-bit hash code of the array content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode64<T>(Span<T>, Int64, ValueFunc<Int64, Int64, Int64>, Boolean)

Computes bitwise hash code for the memory identified by the given span using custom hash function.

Declaration
public static long BitwiseHashCode64<T>(this Span<T> span, long hash, in ValueFunc<long, long, long> hashFunction, bool salted = true)

    where T : struct
Parameters
Type Name Description
DotNext.Span<T> span

The span whose content to be hashed.
Int64 hash

Initial value of the hash.
ValueFunc<Int64, Int64, Int64> hashFunction

Custom hashing algorithm.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int64

64-bit hash code of the array content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode64<T>(ReadOnlySpan<T>, Boolean)

Computes bitwise hash code for the memory identified by the given span.

Declaration
public static long BitwiseHashCode64<T>(this ReadOnlySpan<T> span, bool salted = true)

    where T : struct
Parameters
Type Name Description
ReadOnlySpan<T> span

The span whose content to be hashed.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int64

64-bit hash code of the span content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode64<T>(ReadOnlySpan<T>, Int64, Func<Int64, Int64, Int64>, Boolean)

Computes bitwise hash code for the memory identified by the given span using custom hash function.

Declaration
public static long BitwiseHashCode64<T>(this ReadOnlySpan<T> span, long hash, Func<long, long, long> hashFunction, bool salted = true)

    where T : struct
Parameters
Type Name Description
ReadOnlySpan<T> span

The span whose content to be hashed.
Int64 hash

Initial value of the hash.
DotNext.Func<Int64, Int64, Int64> hashFunction

Custom hashing algorithm.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int64

64-bit hash code of the array content.
Type Parameters
Name Description
T

The type of elements in the span.
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BitwiseHashCode64<T>(ReadOnlySpan<T>, Int64, ValueFunc<Int64, Int64, Int64>, Boolean)

Computes bitwise hash code for the memory identified by the given span using custom hash function.

Declaration
public static long BitwiseHashCode64<T>(this ReadOnlySpan<T> span, long hash, in ValueFunc<long, long, long> hashFunction, bool salted = true)

    where T : struct
Parameters
Type Name Description
ReadOnlySpan<T> span

The span whose content to be hashed.
Int64 hash

Initial value of the hash.
ValueFunc<Int64, Int64, Int64> hashFunction

Custom hashing algorithm.
Boolean salted

true to include randomized salt data into hashing; false to use data from memory only.
Returns
Type Description
Int64

64-bit hash code of the array content.
Type Parameters
Name Description
T

The type of elements in the span.
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ForEach<T>(Span<T>, RefAction<T, Int32>)

Iterates over elements of the span.

Declaration
public static void ForEach<T>(this Span<T> span, RefAction<T, int> action)
Parameters
Type Name Description
DotNext.Span<T> span

The span to iterate.
RefAction<T, Int32> action

The action to be applied for each element of the span.
Type Parameters
Name Description
T

The type of the elements.
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ForEach<T>(Span<T>, ValueRefAction<T, Int32>)

Iterates over elements of the span.

Declaration
public static void ForEach<T>(this Span<T> span, in ValueRefAction<T, int> action)
Parameters
Type Name Description
DotNext.Span<T> span

The span to iterate.
ValueRefAction<T, Int32> action

The action to be applied for each element of the span.
Type Parameters
Name Description
T

The type of the elements.
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IndexOf<T>(ReadOnlySpan<T>, T, Int32, Func<T, T, Boolean>)

Returns the zero-based index of the first occurrence of the specified value in the . The search starts at a specified position.

Declaration
public static int IndexOf<T>(this ReadOnlySpan<T> span, T value, int startIndex, Func<T, T, bool> comparer)
Parameters
Type Name Description
ReadOnlySpan<T> span
T value
Int32 startIndex

The search starting position.
DotNext.Func<T, T, Boolean> comparer

The comparer used to compare the expected value and the actual value from the span.
Returns
Type Description
Int32

The zero-based index position of value from the start of the given span if that value is found, or -1 if it is not.
Type Parameters
Name Description
T

The of the elements in the span.
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IndexOf<T>(ReadOnlySpan<T>, T, Int32, ValueFunc<T, T, Boolean>)

Returns the zero-based index of the first occurrence of the specified value in the . The search starts at a specified position.

Declaration
public static int IndexOf<T>(this ReadOnlySpan<T> span, T value, int startIndex, in ValueFunc<T, T, bool> comparer)
Parameters
Type Name Description
ReadOnlySpan<T> span
T value
Int32 startIndex

The search starting position.
ValueFunc<T, T, Boolean> comparer

The comparer used to compare the expected value and the actual value from the span.
Returns
Type Description
Int32

The zero-based index position of value from the start of the given span if that value is found, or -1 if it is not.
Type Parameters
Name Description
T

The of the elements in the span.
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Sort<T>(Span<T>, Comparison<T>)

Sorts the elements.

Declaration
public static void Sort<T>(this Span<T> span, Comparison<T> comparison)
Parameters
Type Name Description
DotNext.Span<T> span

The contiguous region of arbitrary memory to sort.
DotNext.Comparison<T> comparison

The comparer used for sorting.
Type Parameters
Name Description
T

The type of the elements.
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Sort<T>(Span<T>, ValueFunc<T, T, Int32>)

Sorts the elements.

Declaration
public static void Sort<T>(this Span<T> span, in ValueFunc<T, T, int> comparison)
Parameters
Type Name Description
DotNext.Span<T> span

The contiguous region of arbitrary memory to sort.
ValueFunc<T, T, Int32> comparison

The comparer used for sorting.
Type Parameters
Name Description
T

The type of the elements.
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Sort<T>(Span<T>, IComparer<T>)

Sorts the elements.

Declaration
public static void Sort<T>(this Span<T> span, IComparer<T> comparison = null)
Parameters
Type Name Description
DotNext.Span<T> span

The contiguous region of arbitrary memory to sort.
IComparer<T> comparison

The comparer used for sorting.
Type Parameters
Name Description
T

The type of the elements.
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TrimLength<T>(Span<T>, Int32)

Trims the span to specified length if it exceeds it. If length is less that maxLength then the original span returned.

Declaration
public static Span<T> TrimLength<T>(this Span<T> span, int maxLength)
Parameters
Type Name Description
DotNext.Span<T> span

A contiguous region of arbitrary memory.
Int32 maxLength

Maximum length.
Returns
Type Description
DotNext.Span<T>

Trimmed span.
Type Parameters
Name Description
T
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TrimLength<T>(ReadOnlySpan<T>, Int32)

Trims the span to specified length if it exceeds it. If length is less that maxLength then the original span returned.

Declaration
public static ReadOnlySpan<T> TrimLength<T>(this ReadOnlySpan<T> span, int maxLength)
Parameters
Type Name Description
ReadOnlySpan<T> span

A contiguous region of arbitrary memory.
Int32 maxLength

Maximum length.
Returns
Type Description
ReadOnlySpan<T>

Trimmed span.
Type Parameters
Name Description
T