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SpanとかMemoryとかIntPtrとかArrayの変換方法チートシート

Last updated at Posted at 2019-07-21

自分用のチートシートです。
MSDNマガジンをベースに

変換元 変換先 メソッド Copied
ArraySegment<T> Memory<T> 暗黙のキャスト、
AsMemory()
ArraySegment<T> ReadOnlyMemory<T> 暗黙のキャスト、
AsReadOnlyMemory()
ArraySegment<T> ReadOnlySpan<T> 暗黙のキャスト、
AsReadOnlySpan()
ArraySegment<T> Span<T> 暗黙のキャスト、
AsSpan()
ArraySegment<T> T[] Arrayプロパティ
IntPtr String Marshal.PtrToString{Uni,Auto,Ansi}() *
IntPtr T Marshal.PtrToStructure() *
IntPtr T* キャスト
IntPtr void* ToPointer()
IntPtr Span<T> なし(無理やり変換する方法)
Memory<T> ArraySegment<T> SRIS.MemoryMarshal.TryGetArray()
Memory<T> ReadOnlyMemory<T> 暗黙のキャスト
Memory<T> Span<T> Spanプロパティ
Memory<T> T[] ToArray() *
ReadOnlyMemory<char> string ToString() *
ReadOnlyMemory<char> 素のstring SRIS.MemoryMarshal.TryGetString()
ReadOnlyMemory<T> ArraySegment<T> SRIS.MemoryMarshal.TryGetArray()
ReadOnlyMemory<T> IEnumerable<T> SRIS.MemoryMarshal.ToEnumerable()
ReadOnlyMemory<T> Memory<T> SRIS.MemoryMarshal.AsMemory()
ReadOnlyMemory<T> ReadOnlySpan<T> Spanプロパティ
ReadOnlyMemory<T> T[] ToArray() *
ReadOnlyMemory<T> TManager : System.Buffers.MemoryManager<T> SRIS.MemoryMarshal.TryGetMemoryManager()
ReadOnlySpan<T> string ToString() *
ReadOnlySpan<T> T* fixedステートメント
ReadOnlySpan<T> ref readonly T インデクサー取得アクセサー、
SRIS.MemoryMarshal.GetReference()
ReadOnlySpan<T> where T : struct ReadOnlySpan<byte> SRIS.MemoryMarshal.AsBytes()
ReadOnlySpan<TFrom> where T : struct ReadOnlySpan<TTo> where T : struct SRIS.MemoryMarshal.Cast()
ref byte T SRCS.Unsafe.Read() *
ref T ReadOnlySpan<T> SRIS.MemoryMarshal.CreateReadOnlySpan()
ref T Span<T> SRIS.MemoryMarshal.CreateSpanメソッド`
ref T void* SRCS.Unsafe.AsPointer()
ref TFrom ref TTo SRCS.Unsafe.As()
ref T where T : struct Span<byte> SRIS.MemoryMarshal.TryWriteメソッド、
SRIS.MemoryMarshal.Write()
Span<byte> ref T where T : struct SRIS.MemoryMarshal.AsRef()
Span<byte> T where T : struct SRIS.MemoryMarshal.TryReadメソッド、
SRIS.MemoryMarshal.Read()
*
Span<char> string ToString() *
Span<T> T* fixedステートメント
Span<T> ReadOnlySpan<T> 暗黙のキャスト
Span<T> ref T ref span[0]
GetPinnableReference()
SRIS.MemoryMarshal.GetReference()
Span<T> where T : struct Span<byte> SRIS.MemoryMarshal.AsBytes()
Span<TFrom> where T : struct Span<TTo> where T : struct SRIS.MemoryMarshal.Cast()
String char* fixedステートメント
String ReadOnlyMemory<char> AsReadOnlyMemory()
String ReadOnlySpan<char> 暗黙のキャスト、AsSpan()
String(Pinned) IntPtr GCHandle.AddrOfPinnedObject()
T[] ArraySegment<T> ctor、暗黙のキャスト
T[] Memory<T> ctor、暗黙のキャスト、
AsMemory()
*
T[] ReadOnlyMemory<T> ctor、暗黙のキャスト、
AsReadOnlyMemory()
T[] ReadOnlySpan<T> ctor、暗黙のキャスト、
AsReadOnlySpan()
T[] Span<T> ctor、暗黙のキャスト、
AsSpan()
T[](Pinned) IntPtr Marshal.UnsafeAddrOfPinnedArrayElement()
GCHandle.AddrOfPinnedObject()
*
T[](Pinned) Memory<T> SRIS.MemoryMarshal.CreateFromPinnedArray()
void* IntPtr ctor
void* ReadOnlySpan<T> ctor *
void* ref T SRCS.Unsafe.AsRefメソッド
void* Span<T> ctor

SRIS: System.Runtime.InteropServices
SRCS: System.Runtime.CompilerServices

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