| public static RequiresInInclusiveRange ( int start, int length ) : void | ||
| start | int | |
| length | int | |
| Результат | void | |
public static void Write <[Primitive] T>(this Span <byte> slice, T value)
where T : struct
{
Contract.RequiresInInclusiveRange(Unsafe.SizeOf <T>(), (uint)slice.Length);
Span <T> castedSlice = slice.Cast <byte, T>();
castedSlice[0] = value;
}
public static ReadOnlySpan <char> Slice(this string str, int start, int length)
{
Contract.Requires(str != null);
Contract.RequiresInInclusiveRange(start, length, (uint)str.Length);
return(new ReadOnlySpan <char>(
str,
new UIntPtr((uint)(SpanHelpers.OffsetToStringData + (start * sizeof(char)))),
length
));
}
public ReadOnlySpan(T[] array, int start, int length)
{
Contract.Requires(array != null);
Contract.RequiresInInclusiveRange(start, length, (uint)array.Length);
if (start < array.Length)
{
Object = array;
Offset = UnsafeUtilities.GetElementAddress <T>((UIntPtr)SpanHelpers <T> .OffsetToArrayData, (UIntPtr)start);
Length = length;
}
else
{
Object = null;
Offset = UIntPtr.Zero;
Length = 0;
}
}
/// <summary>
/// Creates a new slice over the portion of the target array beginning
/// at 'start' index and ending at 'end' index (exclusive).
/// </summary>
/// <param name="array">The target array.</param>
/// <param name="start">The index at which to begin the slice.</param>
/// <param name="end">The index at which to end the slice (exclusive).</param>
/// <exception cref="System.ArgumentException">
/// Thrown if the 'array' parameter is null.
/// </exception>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Thrown when the specified start or end index is not in range (<0 or >&eq;length).
/// </exception>
public Slice(T[] array, int start, int end)
{
Contract.Requires(array != null);
Contract.RequiresInInclusiveRange(start, array.Length);
if (start < array.Length)
{
m_object = array;
m_offset = new UIntPtr(
(uint)(SliceHelpers <T> .OffsetToArrayData + (start * PtrUtils.SizeOf <T>())));
Length = end - start;
}
else
{
m_object = null;
m_offset = UIntPtr.Zero;
Length = 0;
}
}
public ReadOnlySpan(T[] array, int start, int length)
{
Contract.Requires(array != null);
Contract.RequiresInInclusiveRange(start, length, (uint)array.Length);
if (start < array.Length)
{
Object = array;
Offset = new UIntPtr(
(uint)(SpanHelpers <T> .OffsetToArrayData + (start * PtrUtils.SizeOf <T>())));
Length = length;
}
else
{
Object = null;
Offset = UIntPtr.Zero;
Length = 0;
}
}
/// <summary>
/// Creates a new span over the portion of the target array beginning
/// at 'start' index.
/// </summary>
/// <param name="array">The target array.</param>
/// <param name="start">The index at which to begin the span.</param>
/// <exception cref="System.ArgumentException">
/// Thrown if the 'array' parameter is null.
/// </exception>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Thrown when the specified start index is not in range (<0 or >&eq;length).
/// </exception>
// TODO: Should we have this overload? It is really confusing when you also have Span(T* array, int length)
// While with Slice it makes sense it might not in here.
internal Span(T[] array, int start)
{
Contract.Requires(array != null);
Contract.RequiresInInclusiveRange(start, array.Length);
if (start < array.Length)
{
_object = array;
_offset = new UIntPtr(
(uint)(SpanHelpers <T> .OffsetToArrayData + (start * PtrUtils.SizeOf <T>())));
Length = array.Length - start;
}
else
{
_object = null;
_offset = UIntPtr.Zero;
Length = 0;
}
}
internal Span(T[] array, int start)
{
Contract.Requires(array != null);
Contract.Requires(default(T) != null || array.GetType() == typeof(T[]));
Contract.RequiresInInclusiveRange(start, (uint)array.Length);
if (start < array.Length)
{
Object = array;
Offset = UnsafeUtilities.GetElementAddress <T>((UIntPtr)SpanHelpers <T> .OffsetToArrayData, (UIntPtr)start);
Length = array.Length - start;
}
else
{
Object = null;
Offset = UIntPtr.Zero;
Length = 0;
}
}
internal ReadOnlySpan(T[] array, int start)
{
Contract.Requires(array != null);
Contract.RequiresInInclusiveRange(start, (uint)array.Length);
if (start < array.Length)
{
Object = array;
Offset = new UIntPtr(
(uint)(SpanHelpers <T> .OffsetToArrayData + (start * UnsafeUtilities.SizeOf <T>())));
Length = array.Length - start;
}
else
{
Object = null;
Offset = UIntPtr.Zero;
Length = 0;
}
}
internal Span(T[] array, int start)
{
Contract.Requires(array != null);
Contract.Requires(default(T) != null || array.GetType() == typeof(T[]));
Contract.RequiresInInclusiveRange(start, (uint)array.Length);
if (start < array.Length)
{
Object = array;
Offset = new UIntPtr(
(uint)(SpanHelpers <T> .OffsetToArrayData + (start * PtrUtils.SizeOf <T>())));
Length = array.Length - start;
}
else
{
Object = null;
Offset = UIntPtr.Zero;
Length = 0;
}
}
public static T Read <[Primitive] T>(this ReadOnlySpan <byte> slice)
where T : struct
{
Contract.RequiresInInclusiveRange(PtrUtils.SizeOf <T>(), (uint)slice.Length);
return(PtrUtils.Get <T>(slice.Object, slice.Offset, (UIntPtr)0));
}
public Span <T> Slice(int start)
{
Contract.RequiresInInclusiveRange(start, (uint)Length);
return(new Span <T>(Object, Offset + (start * UnsafeUtilities.SizeOf <T>()), Length - start));
}
public Span <T> Slice(uint start, uint length)
{
Contract.RequiresInInclusiveRange(start, length, (uint)Length);
return(new Span <T>(
Object, UnsafeUtilities.GetElementAddress <T>(Offset, (UIntPtr)start), (int)length));
}
public Span <T> Slice(uint start)
{
Contract.RequiresInInclusiveRange(start, (uint)Length);
return(new Span <T>(Object, Offset + (((int)start) * PtrUtils.SizeOf <T>()), Length - (int)start));
}
public static T Read <[Primitive] T>(this ReadOnlySpan <byte> slice)
where T : struct
{
Contract.RequiresInInclusiveRange(Unsafe.SizeOf <T>(), (uint)slice.Length);
return(Unsafe.As <byte, T>(ref slice.DangerousGetPinnableReference()));
}
public ReadOnlySpan <T> Slice(uint start, uint length)
{
Contract.RequiresInInclusiveRange(start, length, (uint)Length);
return(new ReadOnlySpan <T>(
Object, Offset + (((int)start) * PtrUtils.SizeOf <T>()), (int)length));
}
public ReadOnlySpan <T> Slice(uint start)
{
Contract.RequiresInInclusiveRange(start, (uint)Length);
return(new ReadOnlySpan <T>(Object, UnsafeUtilities.GetElementAddress <T>(Offset, (UIntPtr)start), Length - (int)start));
}
public Span <T> Slice(int start, int length)
{
Contract.RequiresInInclusiveRange(start, length, (uint)Length);
return(new Span <T>(
Object, Offset + (start * PtrUtils.SizeOf <T>()), length));
}
/// <summary>
/// Forms a slice out of the given span, beginning at 'start', and
/// ending at 'end' (exclusive).
/// </summary>
/// <param name="start">The index at which to begin this slice.</param>
/// <param name="end">The index at which to end this slice (exclusive).</param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Thrown when the specified start or end index is not in range (<0 or >&eq;length).
/// </exception>
public Span <T> Slice(int start, int end)
{
Contract.RequiresInInclusiveRange(start, end, Length);
return(new Span <T>(
m_object, m_offset + (start * PtrUtils.SizeOf <T>()), end - start));
}
public static void Write <[Primitive] T>(this Span <byte> slice, T value)
where T : struct
{
Contract.RequiresInInclusiveRange(PtrUtils.SizeOf <T>(), (uint)slice.Length);
PtrUtils.Set(slice.Object, slice.Offset, (UIntPtr)0, value);
}
public Span <T> Slice(uint start, uint length)
{
Contract.RequiresInInclusiveRange(start, length, (uint)Length);
return(new Span <T>(
Object, Offset + (((int)start) * UnsafeUtilities.SizeOf <T>()), (int)length));
}
public ReadOnlySpan <T> Slice(int start)
{
Contract.RequiresInInclusiveRange(start, (uint)Length);
return(new ReadOnlySpan <T>(
Object, Offset + (start * PtrUtils.SizeOf <T>()), Length - start));
}
public ReadOnlySpan <T> Slice(int start, int length)
{
Contract.RequiresInInclusiveRange(start, length, (uint)Length);
return(new ReadOnlySpan <T>(
Object, Offset + (start * UnsafeUtilities.SizeOf <T>()), length));
}
public static T Read <[Primitive] T>(this ReadOnlySpan <byte> slice)
where T : struct
{
Contract.RequiresInInclusiveRange(Unsafe.SizeOf <T>(), (uint)slice.Length);
return(slice.Cast <byte, T>()[0]);
}
public static void Write <[Primitive] T>(this Span <byte> slice, T value)
where T : struct
{
Contract.RequiresInInclusiveRange(Unsafe.SizeOf <T>(), (uint)slice.Length);
Unsafe.WriteUnaligned <T>(ref slice.DangerousGetPinnableReference(), value);
}