/
UInt64.cs
1265 lines (1054 loc) · 51.5 KB
/
UInt64.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Buffers.Binary;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
namespace System
{
[Serializable]
[CLSCompliant(false)]
[StructLayout(LayoutKind.Sequential)]
[TypeForwardedFrom("mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
public readonly struct UInt64
: IComparable,
IConvertible,
ISpanFormattable,
IComparable<ulong>,
IEquatable<ulong>,
IBinaryInteger<ulong>,
IMinMaxValue<ulong>,
IUnsignedNumber<ulong>,
IUtf8SpanFormattable,
IBinaryIntegerParseAndFormatInfo<ulong>
{
private readonly ulong m_value; // Do not rename (binary serialization)
public const ulong MaxValue = (ulong)0xffffffffffffffffL;
public const ulong MinValue = 0x0;
/// <summary>Represents the additive identity (0).</summary>
private const ulong AdditiveIdentity = 0;
/// <summary>Represents the multiplicative identity (1).</summary>
private const ulong MultiplicativeIdentity = 1;
/// <summary>Represents the number one (1).</summary>
private const ulong One = 1;
/// <summary>Represents the number zero (0).</summary>
private const ulong Zero = 0;
// Compares this object to another object, returning an integer that
// indicates the relationship.
// Returns a value less than zero if this object
// null is considered to be less than any instance.
// If object is not of type UInt64, this method throws an ArgumentException.
//
public int CompareTo(object? value)
{
if (value == null)
{
return 1;
}
// Need to use compare because subtraction will wrap
// to positive for very large neg numbers, etc.
if (value is ulong i)
{
if (m_value < i) return -1;
if (m_value > i) return 1;
return 0;
}
throw new ArgumentException(SR.Arg_MustBeUInt64);
}
public int CompareTo(ulong value)
{
// Need to use compare because subtraction will wrap
// to positive for very large neg numbers, etc.
if (m_value < value) return -1;
if (m_value > value) return 1;
return 0;
}
public override bool Equals([NotNullWhen(true)] object? obj)
{
if (!(obj is ulong))
{
return false;
}
return m_value == ((ulong)obj).m_value;
}
[NonVersionable]
public bool Equals(ulong obj)
{
return m_value == obj;
}
// The value of the lower 32 bits XORed with the uppper 32 bits.
public override int GetHashCode()
{
return ((int)m_value) ^ (int)(m_value >> 32);
}
public override string ToString()
{
return Number.UInt64ToDecStr(m_value);
}
public string ToString(IFormatProvider? provider)
{
return Number.UInt64ToDecStr(m_value);
}
public string ToString([StringSyntax(StringSyntaxAttribute.NumericFormat)] string? format)
{
return Number.FormatUInt64(m_value, format, null);
}
public string ToString([StringSyntax(StringSyntaxAttribute.NumericFormat)] string? format, IFormatProvider? provider)
{
return Number.FormatUInt64(m_value, format, provider);
}
public bool TryFormat(Span<char> destination, out int charsWritten, [StringSyntax(StringSyntaxAttribute.NumericFormat)] ReadOnlySpan<char> format = default, IFormatProvider? provider = null)
{
return Number.TryFormatUInt64(m_value, format, provider, destination, out charsWritten);
}
/// <inheritdoc cref="IUtf8SpanFormattable.TryFormat" />
public bool TryFormat(Span<byte> utf8Destination, out int bytesWritten, [StringSyntax(StringSyntaxAttribute.NumericFormat)] ReadOnlySpan<char> format = default, IFormatProvider? provider = null)
{
return Number.TryFormatUInt64(m_value, format, provider, utf8Destination, out bytesWritten);
}
public static ulong Parse(string s) => Parse(s, NumberStyles.Integer, provider: null);
public static ulong Parse(string s, NumberStyles style) => Parse(s, style, provider: null);
public static ulong Parse(string s, IFormatProvider? provider) => Parse(s, NumberStyles.Integer, provider);
public static ulong Parse(string s, NumberStyles style, IFormatProvider? provider)
{
if (s is null) { ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s); }
return Parse(s.AsSpan(), style, provider);
}
public static ulong Parse(ReadOnlySpan<char> s, NumberStyles style = NumberStyles.Integer, IFormatProvider? provider = null)
{
NumberFormatInfo.ValidateParseStyleInteger(style);
return Number.ParseBinaryInteger<char, ulong>(s, style, NumberFormatInfo.GetInstance(provider));
}
public static bool TryParse([NotNullWhen(true)] string? s, out ulong result) => TryParse(s, NumberStyles.Integer, provider: null, out result);
public static bool TryParse(ReadOnlySpan<char> s, out ulong result) => TryParse(s, NumberStyles.Integer, provider: null, out result);
/// <summary>Tries to convert a UTF-8 character span containing the string representation of a number to its 64-bit unsigned integer equivalent.</summary>
/// <param name="utf8Text">A span containing the UTF-8 characters representing the number to convert.</param>
/// <param name="result">When this method returns, contains the 64-bit unsigned integer value equivalent to the number contained in <paramref name="utf8Text" /> if the conversion succeeded, or zero if the conversion failed. This parameter is passed uninitialized; any value originally supplied in result will be overwritten.</param>
/// <returns><c>true</c> if <paramref name="utf8Text" /> was converted successfully; otherwise, false.</returns>
public static bool TryParse(ReadOnlySpan<byte> utf8Text, out ulong result) => TryParse(utf8Text, NumberStyles.Integer, provider: null, out result);
public static bool TryParse([NotNullWhen(true)] string? s, NumberStyles style, IFormatProvider? provider, out ulong result)
{
NumberFormatInfo.ValidateParseStyleInteger(style);
if (s is null)
{
result = 0;
return false;
}
return Number.TryParseBinaryInteger(s.AsSpan(), style, NumberFormatInfo.GetInstance(provider), out result) == Number.ParsingStatus.OK;
}
public static bool TryParse(ReadOnlySpan<char> s, NumberStyles style, IFormatProvider? provider, out ulong result)
{
NumberFormatInfo.ValidateParseStyleInteger(style);
return Number.TryParseBinaryInteger(s, style, NumberFormatInfo.GetInstance(provider), out result) == Number.ParsingStatus.OK;
}
//
// IConvertible implementation
//
public TypeCode GetTypeCode()
{
return TypeCode.UInt64;
}
bool IConvertible.ToBoolean(IFormatProvider? provider)
{
return Convert.ToBoolean(m_value);
}
char IConvertible.ToChar(IFormatProvider? provider)
{
return Convert.ToChar(m_value);
}
sbyte IConvertible.ToSByte(IFormatProvider? provider)
{
return Convert.ToSByte(m_value);
}
byte IConvertible.ToByte(IFormatProvider? provider)
{
return Convert.ToByte(m_value);
}
short IConvertible.ToInt16(IFormatProvider? provider)
{
return Convert.ToInt16(m_value);
}
ushort IConvertible.ToUInt16(IFormatProvider? provider)
{
return Convert.ToUInt16(m_value);
}
int IConvertible.ToInt32(IFormatProvider? provider)
{
return Convert.ToInt32(m_value);
}
uint IConvertible.ToUInt32(IFormatProvider? provider)
{
return Convert.ToUInt32(m_value);
}
long IConvertible.ToInt64(IFormatProvider? provider)
{
return Convert.ToInt64(m_value);
}
ulong IConvertible.ToUInt64(IFormatProvider? provider)
{
return m_value;
}
float IConvertible.ToSingle(IFormatProvider? provider)
{
return Convert.ToSingle(m_value);
}
double IConvertible.ToDouble(IFormatProvider? provider)
{
return Convert.ToDouble(m_value);
}
decimal IConvertible.ToDecimal(IFormatProvider? provider)
{
return Convert.ToDecimal(m_value);
}
DateTime IConvertible.ToDateTime(IFormatProvider? provider)
{
throw new InvalidCastException(SR.Format(SR.InvalidCast_FromTo, "UInt64", "DateTime"));
}
object IConvertible.ToType(Type type, IFormatProvider? provider)
{
return Convert.DefaultToType((IConvertible)this, type, provider);
}
//
// IAdditionOperators
//
/// <inheritdoc cref="IAdditionOperators{TSelf, TOther, TResult}.op_Addition(TSelf, TOther)" />
static ulong IAdditionOperators<ulong, ulong, ulong>.operator +(ulong left, ulong right) => left + right;
/// <inheritdoc cref="IAdditionOperators{TSelf, TOther, TResult}.op_Addition(TSelf, TOther)" />
static ulong IAdditionOperators<ulong, ulong, ulong>.operator checked +(ulong left, ulong right) => checked(left + right);
//
// IAdditiveIdentity
//
/// <inheritdoc cref="IAdditiveIdentity{TSelf, TResult}.AdditiveIdentity" />
static ulong IAdditiveIdentity<ulong, ulong>.AdditiveIdentity => AdditiveIdentity;
//
// IBinaryInteger
//
/// <inheritdoc cref="IBinaryInteger{TSelf}.DivRem(TSelf, TSelf)" />
public static (ulong Quotient, ulong Remainder) DivRem(ulong left, ulong right) => Math.DivRem(left, right);
/// <inheritdoc cref="IBinaryInteger{TSelf}.LeadingZeroCount(TSelf)" />
[Intrinsic]
public static ulong LeadingZeroCount(ulong value) => (ulong)BitOperations.LeadingZeroCount(value);
/// <inheritdoc cref="IBinaryInteger{TSelf}.PopCount(TSelf)" />
[Intrinsic]
public static ulong PopCount(ulong value) => (ulong)BitOperations.PopCount(value);
/// <inheritdoc cref="IBinaryInteger{TSelf}.RotateLeft(TSelf, int)" />
[Intrinsic]
public static ulong RotateLeft(ulong value, int rotateAmount) => BitOperations.RotateLeft(value, rotateAmount);
/// <inheritdoc cref="IBinaryInteger{TSelf}.RotateRight(TSelf, int)" />
[Intrinsic]
public static ulong RotateRight(ulong value, int rotateAmount) => BitOperations.RotateRight(value, rotateAmount);
/// <inheritdoc cref="IBinaryInteger{TSelf}.TrailingZeroCount(TSelf)" />
[Intrinsic]
public static ulong TrailingZeroCount(ulong value) => (ulong)BitOperations.TrailingZeroCount(value);
/// <inheritdoc cref="IBinaryInteger{TSelf}.TryReadBigEndian(ReadOnlySpan{byte}, bool, out TSelf)" />
static bool IBinaryInteger<ulong>.TryReadBigEndian(ReadOnlySpan<byte> source, bool isUnsigned, out ulong value)
{
ulong result = default;
if (source.Length != 0)
{
if (!isUnsigned && sbyte.IsNegative((sbyte)source[0]))
{
// When we are signed and the sign bit is set, we are negative and therefore
// definitely out of range
value = result;
return false;
}
if ((source.Length > sizeof(ulong)) && (source[..^sizeof(ulong)].ContainsAnyExcept((byte)0x00)))
{
// When we have any non-zero leading data, we are a large positive and therefore
// definitely out of range
value = result;
return false;
}
ref byte sourceRef = ref MemoryMarshal.GetReference(source);
if (source.Length >= sizeof(ulong))
{
sourceRef = ref Unsafe.Add(ref sourceRef, source.Length - sizeof(ulong));
// We have at least 8 bytes, so just read the ones we need directly
result = Unsafe.ReadUnaligned<ulong>(ref sourceRef);
if (BitConverter.IsLittleEndian)
{
result = BinaryPrimitives.ReverseEndianness(result);
}
}
else
{
// We have between 1 and 7 bytes, so construct the relevant value directly
// since the data is in Big Endian format, we can just read the bytes and
// shift left by 8-bits for each subsequent part
for (int i = 0; i < source.Length; i++)
{
result <<= 8;
result |= Unsafe.Add(ref sourceRef, i);
}
}
}
value = result;
return true;
}
/// <inheritdoc cref="IBinaryInteger{TSelf}.TryReadLittleEndian(ReadOnlySpan{byte}, bool, out TSelf)" />
static bool IBinaryInteger<ulong>.TryReadLittleEndian(ReadOnlySpan<byte> source, bool isUnsigned, out ulong value)
{
ulong result = default;
if (source.Length != 0)
{
if (!isUnsigned && sbyte.IsNegative((sbyte)source[^1]))
{
// When we are signed and the sign bit is set, we are negative and therefore
// definitely out of range
value = result;
return false;
}
if ((source.Length > sizeof(ulong)) && (source[sizeof(ulong)..].ContainsAnyExcept((byte)0x00)))
{
// When we have any non-zero leading data, we are a large positive and therefore
// definitely out of range
value = result;
return false;
}
ref byte sourceRef = ref MemoryMarshal.GetReference(source);
if (source.Length >= sizeof(ulong))
{
// We have at least 8 bytes, so just read the ones we need directly
result = Unsafe.ReadUnaligned<ulong>(ref sourceRef);
if (!BitConverter.IsLittleEndian)
{
result = BinaryPrimitives.ReverseEndianness(result);
}
}
else
{
// We have between 1 and 7 bytes, so construct the relevant value directly
// since the data is in Little Endian format, we can just read the bytes and
// shift left by 8-bits for each subsequent part, then reverse endianness to
// ensure the order is correct. This is more efficient than iterating in reverse
// due to current JIT limitations
for (int i = 0; i < source.Length; i++)
{
ulong part = Unsafe.Add(ref sourceRef, i);
part <<= (i * 8);
result |= part;
}
}
}
value = result;
return true;
}
/// <inheritdoc cref="IBinaryInteger{TSelf}.GetShortestBitLength()" />
int IBinaryInteger<ulong>.GetShortestBitLength() => (sizeof(ulong) * 8) - BitOperations.LeadingZeroCount(m_value);
/// <inheritdoc cref="IBinaryInteger{TSelf}.GetByteCount()" />
int IBinaryInteger<ulong>.GetByteCount() => sizeof(ulong);
/// <inheritdoc cref="IBinaryInteger{TSelf}.TryWriteBigEndian(Span{byte}, out int)" />
bool IBinaryInteger<ulong>.TryWriteBigEndian(Span<byte> destination, out int bytesWritten)
{
if (destination.Length >= sizeof(ulong))
{
ulong value = BitConverter.IsLittleEndian ? BinaryPrimitives.ReverseEndianness(m_value) : m_value;
Unsafe.WriteUnaligned(ref MemoryMarshal.GetReference(destination), value);
bytesWritten = sizeof(ulong);
return true;
}
else
{
bytesWritten = 0;
return false;
}
}
/// <inheritdoc cref="IBinaryInteger{TSelf}.TryWriteLittleEndian(Span{byte}, out int)" />
bool IBinaryInteger<ulong>.TryWriteLittleEndian(Span<byte> destination, out int bytesWritten)
{
if (destination.Length >= sizeof(ulong))
{
ulong value = BitConverter.IsLittleEndian ? m_value : BinaryPrimitives.ReverseEndianness(m_value);
Unsafe.WriteUnaligned(ref MemoryMarshal.GetReference(destination), value);
bytesWritten = sizeof(ulong);
return true;
}
else
{
bytesWritten = 0;
return false;
}
}
//
// IBinaryNumber
//
/// <inheritdoc cref="IBinaryNumber{TSelf}.AllBitsSet" />
static ulong IBinaryNumber<ulong>.AllBitsSet => MaxValue;
/// <inheritdoc cref="IBinaryNumber{TSelf}.IsPow2(TSelf)" />
public static bool IsPow2(ulong value) => BitOperations.IsPow2(value);
/// <inheritdoc cref="IBinaryNumber{TSelf}.Log2(TSelf)" />
[Intrinsic]
public static ulong Log2(ulong value) => (ulong)BitOperations.Log2(value);
//
// IBitwiseOperators
//
/// <inheritdoc cref="IBitwiseOperators{TSelf, TOther, TResult}.op_BitwiseAnd(TSelf, TOther)" />
static ulong IBitwiseOperators<ulong, ulong, ulong>.operator &(ulong left, ulong right) => left & right;
/// <inheritdoc cref="IBitwiseOperators{TSelf, TOther, TResult}.op_BitwiseOr(TSelf, TOther)" />
static ulong IBitwiseOperators<ulong, ulong, ulong>.operator |(ulong left, ulong right) => left | right;
/// <inheritdoc cref="IBitwiseOperators{TSelf, TOther, TResult}.op_ExclusiveOr(TSelf, TOther)" />
static ulong IBitwiseOperators<ulong, ulong, ulong>.operator ^(ulong left, ulong right) => left ^ right;
/// <inheritdoc cref="IBitwiseOperators{TSelf, TOther, TResult}.op_OnesComplement(TSelf)" />
static ulong IBitwiseOperators<ulong, ulong, ulong>.operator ~(ulong value) => ~value;
//
// IComparisonOperators
//
/// <inheritdoc cref="IComparisonOperators{TSelf, TOther, TResult}.op_LessThan(TSelf, TOther)" />
static bool IComparisonOperators<ulong, ulong, bool>.operator <(ulong left, ulong right) => left < right;
/// <inheritdoc cref="IComparisonOperators{TSelf, TOther, TResult}.op_LessThanOrEqual(TSelf, TOther)" />
static bool IComparisonOperators<ulong, ulong, bool>.operator <=(ulong left, ulong right) => left <= right;
/// <inheritdoc cref="IComparisonOperators{TSelf, TOther, TResult}.op_GreaterThan(TSelf, TOther)" />
static bool IComparisonOperators<ulong, ulong, bool>.operator >(ulong left, ulong right) => left > right;
/// <inheritdoc cref="IComparisonOperators{TSelf, TOther, TResult}.op_GreaterThanOrEqual(TSelf, TOther)" />
static bool IComparisonOperators<ulong, ulong, bool>.operator >=(ulong left, ulong right) => left >= right;
//
// IDecrementOperators
//
/// <inheritdoc cref="IDecrementOperators{TSelf}.op_Decrement(TSelf)" />
static ulong IDecrementOperators<ulong>.operator --(ulong value) => --value;
/// <inheritdoc cref="IDecrementOperators{TSelf}.op_Decrement(TSelf)" />
static ulong IDecrementOperators<ulong>.operator checked --(ulong value) => checked(--value);
//
// IDivisionOperators
//
/// <inheritdoc cref="IDivisionOperators{TSelf, TOther, TResult}.op_Division(TSelf, TOther)" />
static ulong IDivisionOperators<ulong, ulong, ulong>.operator /(ulong left, ulong right) => left / right;
//
// IEqualityOperators
//
/// <inheritdoc cref="IEqualityOperators{TSelf, TOther, TResult}.op_Equality(TSelf, TOther)" />
static bool IEqualityOperators<ulong, ulong, bool>.operator ==(ulong left, ulong right) => left == right;
/// <inheritdoc cref="IEqualityOperators{TSelf, TOther, TResult}.op_Inequality(TSelf, TOther)" />
static bool IEqualityOperators<ulong, ulong, bool>.operator !=(ulong left, ulong right) => left != right;
//
// IIncrementOperators
//
/// <inheritdoc cref="IIncrementOperators{TSelf}.op_Increment(TSelf)" />
static ulong IIncrementOperators<ulong>.operator ++(ulong value) => ++value;
/// <inheritdoc cref="IIncrementOperators{TSelf}.op_CheckedIncrement(TSelf)" />
static ulong IIncrementOperators<ulong>.operator checked ++(ulong value) => checked(++value);
//
// IMinMaxValue
//
/// <inheritdoc cref="IMinMaxValue{TSelf}.MinValue" />
static ulong IMinMaxValue<ulong>.MinValue => MinValue;
/// <inheritdoc cref="IMinMaxValue{TSelf}.MaxValue" />
static ulong IMinMaxValue<ulong>.MaxValue => MaxValue;
//
// IModulusOperators
//
/// <inheritdoc cref="IModulusOperators{TSelf, TOther, TResult}.op_Modulus(TSelf, TOther)" />
static ulong IModulusOperators<ulong, ulong, ulong>.operator %(ulong left, ulong right) => left % right;
//
// IMultiplicativeIdentity
//
/// <inheritdoc cref="IMultiplicativeIdentity{TSelf, TResult}.MultiplicativeIdentity" />
static ulong IMultiplicativeIdentity<ulong, ulong>.MultiplicativeIdentity => MultiplicativeIdentity;
//
// IMultiplyOperators
//
/// <inheritdoc cref="IMultiplyOperators{TSelf, TOther, TResult}.op_Multiply(TSelf, TOther)" />
static ulong IMultiplyOperators<ulong, ulong, ulong>.operator *(ulong left, ulong right) => left * right;
/// <inheritdoc cref="IMultiplyOperators{TSelf, TOther, TResult}.op_CheckedMultiply(TSelf, TOther)" />
static ulong IMultiplyOperators<ulong, ulong, ulong>.operator checked *(ulong left, ulong right) => checked(left * right);
//
// INumber
//
/// <inheritdoc cref="INumber{TSelf}.Clamp(TSelf, TSelf, TSelf)" />
public static ulong Clamp(ulong value, ulong min, ulong max) => Math.Clamp(value, min, max);
/// <inheritdoc cref="INumber{TSelf}.CopySign(TSelf, TSelf)" />
static ulong INumber<ulong>.CopySign(ulong value, ulong sign) => value;
/// <inheritdoc cref="INumber{TSelf}.Max(TSelf, TSelf)" />
public static ulong Max(ulong x, ulong y) => Math.Max(x, y);
/// <inheritdoc cref="INumber{TSelf}.MaxNumber(TSelf, TSelf)" />
static ulong INumber<ulong>.MaxNumber(ulong x, ulong y) => Max(x, y);
/// <inheritdoc cref="INumber{TSelf}.Min(TSelf, TSelf)" />
public static ulong Min(ulong x, ulong y) => Math.Min(x, y);
/// <inheritdoc cref="INumber{TSelf}.MinNumber(TSelf, TSelf)" />
static ulong INumber<ulong>.MinNumber(ulong x, ulong y) => Min(x, y);
/// <inheritdoc cref="INumber{TSelf}.Sign(TSelf)" />
public static int Sign(ulong value) => (value == 0) ? 0 : 1;
//
// INumberBase
//
/// <inheritdoc cref="INumberBase{TSelf}.One" />
static ulong INumberBase<ulong>.One => One;
/// <inheritdoc cref="INumberBase{TSelf}.Radix" />
static int INumberBase<ulong>.Radix => 2;
/// <inheritdoc cref="INumberBase{TSelf}.Zero" />
static ulong INumberBase<ulong>.Zero => Zero;
/// <inheritdoc cref="INumberBase{TSelf}.Abs(TSelf)" />
static ulong INumberBase<ulong>.Abs(ulong value) => value;
/// <inheritdoc cref="INumberBase{TSelf}.CreateChecked{TOther}(TOther)" />
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ulong CreateChecked<TOther>(TOther value)
where TOther : INumberBase<TOther>
{
ulong result;
if (typeof(TOther) == typeof(ulong))
{
result = (ulong)(object)value;
}
else if (!TryConvertFromChecked(value, out result) && !TOther.TryConvertToChecked(value, out result))
{
ThrowHelper.ThrowNotSupportedException();
}
return result;
}
/// <inheritdoc cref="INumberBase{TSelf}.CreateSaturating{TOther}(TOther)" />
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ulong CreateSaturating<TOther>(TOther value)
where TOther : INumberBase<TOther>
{
ulong result;
if (typeof(TOther) == typeof(ulong))
{
result = (ulong)(object)value;
}
else if (!TryConvertFromSaturating(value, out result) && !TOther.TryConvertToSaturating(value, out result))
{
ThrowHelper.ThrowNotSupportedException();
}
return result;
}
/// <inheritdoc cref="INumberBase{TSelf}.CreateTruncating{TOther}(TOther)" />
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ulong CreateTruncating<TOther>(TOther value)
where TOther : INumberBase<TOther>
{
ulong result;
if (typeof(TOther) == typeof(ulong))
{
result = (ulong)(object)value;
}
else if (!TryConvertFromTruncating(value, out result) && !TOther.TryConvertToTruncating(value, out result))
{
ThrowHelper.ThrowNotSupportedException();
}
return result;
}
/// <inheritdoc cref="INumberBase{TSelf}.IsCanonical(TSelf)" />
static bool INumberBase<ulong>.IsCanonical(ulong value) => true;
/// <inheritdoc cref="INumberBase{TSelf}.IsComplexNumber(TSelf)" />
static bool INumberBase<ulong>.IsComplexNumber(ulong value) => false;
/// <inheritdoc cref="INumberBase{TSelf}.IsEvenInteger(TSelf)" />
public static bool IsEvenInteger(ulong value) => (value & 1) == 0;
/// <inheritdoc cref="INumberBase{TSelf}.IsFinite(TSelf)" />
static bool INumberBase<ulong>.IsFinite(ulong value) => true;
/// <inheritdoc cref="INumberBase{TSelf}.IsImaginaryNumber(TSelf)" />
static bool INumberBase<ulong>.IsImaginaryNumber(ulong value) => false;
/// <inheritdoc cref="INumberBase{TSelf}.IsInfinity(TSelf)" />
static bool INumberBase<ulong>.IsInfinity(ulong value) => false;
/// <inheritdoc cref="INumberBase{TSelf}.IsInteger(TSelf)" />
static bool INumberBase<ulong>.IsInteger(ulong value) => true;
/// <inheritdoc cref="INumberBase{TSelf}.IsNaN(TSelf)" />
static bool INumberBase<ulong>.IsNaN(ulong value) => false;
/// <inheritdoc cref="INumberBase{TSelf}.IsNegative(TSelf)" />
static bool INumberBase<ulong>.IsNegative(ulong value) => false;
/// <inheritdoc cref="INumberBase{TSelf}.IsNegativeInfinity(TSelf)" />
static bool INumberBase<ulong>.IsNegativeInfinity(ulong value) => false;
/// <inheritdoc cref="INumberBase{TSelf}.IsNormal(TSelf)" />
static bool INumberBase<ulong>.IsNormal(ulong value) => value != 0;
/// <inheritdoc cref="INumberBase{TSelf}.IsOddInteger(TSelf)" />
public static bool IsOddInteger(ulong value) => (value & 1) != 0;
/// <inheritdoc cref="INumberBase{TSelf}.IsPositive(TSelf)" />
static bool INumberBase<ulong>.IsPositive(ulong value) => true;
/// <inheritdoc cref="INumberBase{TSelf}.IsPositiveInfinity(TSelf)" />
static bool INumberBase<ulong>.IsPositiveInfinity(ulong value) => false;
/// <inheritdoc cref="INumberBase{TSelf}.IsRealNumber(TSelf)" />
static bool INumberBase<ulong>.IsRealNumber(ulong value) => true;
/// <inheritdoc cref="INumberBase{TSelf}.IsSubnormal(TSelf)" />
static bool INumberBase<ulong>.IsSubnormal(ulong value) => false;
/// <inheritdoc cref="INumberBase{TSelf}.IsZero(TSelf)" />
static bool INumberBase<ulong>.IsZero(ulong value) => (value == 0);
/// <inheritdoc cref="INumberBase{TSelf}.MaxMagnitude(TSelf, TSelf)" />
static ulong INumberBase<ulong>.MaxMagnitude(ulong x, ulong y) => Max(x, y);
/// <inheritdoc cref="INumberBase{TSelf}.MaxMagnitudeNumber(TSelf, TSelf)" />
static ulong INumberBase<ulong>.MaxMagnitudeNumber(ulong x, ulong y) => Max(x, y);
/// <inheritdoc cref="INumberBase{TSelf}.MinMagnitude(TSelf, TSelf)" />
static ulong INumberBase<ulong>.MinMagnitude(ulong x, ulong y) => Min(x, y);
/// <inheritdoc cref="INumberBase{TSelf}.MinMagnitudeNumber(TSelf, TSelf)" />
static ulong INumberBase<ulong>.MinMagnitudeNumber(ulong x, ulong y) => Min(x, y);
/// <inheritdoc cref="INumberBase{TSelf}.TryConvertFromChecked{TOther}(TOther, out TSelf)" />
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static bool INumberBase<ulong>.TryConvertFromChecked<TOther>(TOther value, out ulong result) => TryConvertFromChecked(value, out result);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static bool TryConvertFromChecked<TOther>(TOther value, out ulong result)
where TOther : INumberBase<TOther>
{
// In order to reduce overall code duplication and improve the inlinabilty of these
// methods for the corelib types we have `ConvertFrom` handle the same sign and
// `ConvertTo` handle the opposite sign. However, since there is an uneven split
// between signed and unsigned types, the one that handles unsigned will also
// handle `Decimal`.
//
// That is, `ConvertFrom` for `ulong` will handle the other unsigned types and
// `ConvertTo` will handle the signed types
if (typeof(TOther) == typeof(byte))
{
byte actualValue = (byte)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(char))
{
char actualValue = (char)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(decimal))
{
decimal actualValue = (decimal)(object)value;
result = checked((ulong)actualValue);
return true;
}
else if (typeof(TOther) == typeof(ushort))
{
ushort actualValue = (ushort)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(uint))
{
uint actualValue = (uint)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(UInt128))
{
UInt128 actualValue = (UInt128)(object)value;
result = checked((ulong)actualValue);
return true;
}
else if (typeof(TOther) == typeof(nuint))
{
nuint actualValue = (nuint)(object)value;
result = actualValue;
return true;
}
else
{
result = default;
return false;
}
}
/// <inheritdoc cref="INumberBase{TSelf}.TryConvertFromSaturating{TOther}(TOther, out TSelf)" />
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static bool INumberBase<ulong>.TryConvertFromSaturating<TOther>(TOther value, out ulong result) => TryConvertFromSaturating(value, out result);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static bool TryConvertFromSaturating<TOther>(TOther value, out ulong result)
where TOther : INumberBase<TOther>
{
// In order to reduce overall code duplication and improve the inlinabilty of these
// methods for the corelib types we have `ConvertFrom` handle the same sign and
// `ConvertTo` handle the opposite sign. However, since there is an uneven split
// between signed and unsigned types, the one that handles unsigned will also
// handle `Decimal`.
//
// That is, `ConvertFrom` for `ulong` will handle the other unsigned types and
// `ConvertTo` will handle the signed types
if (typeof(TOther) == typeof(byte))
{
byte actualValue = (byte)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(char))
{
char actualValue = (char)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(decimal))
{
decimal actualValue = (decimal)(object)value;
result = (actualValue >= MaxValue) ? MaxValue :
(actualValue <= MinValue) ? MinValue : (ulong)actualValue;
return true;
}
else if (typeof(TOther) == typeof(ushort))
{
ushort actualValue = (ushort)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(uint))
{
uint actualValue = (uint)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(UInt128))
{
UInt128 actualValue = (UInt128)(object)value;
result = (actualValue >= MaxValue) ? MaxValue : (ulong)actualValue;
return true;
}
else if (typeof(TOther) == typeof(nuint))
{
nuint actualValue = (nuint)(object)value;
result = actualValue;
return true;
}
else
{
result = default;
return false;
}
}
/// <inheritdoc cref="INumberBase{TSelf}.TryConvertFromTruncating{TOther}(TOther, out TSelf)" />
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static bool INumberBase<ulong>.TryConvertFromTruncating<TOther>(TOther value, out ulong result) => TryConvertFromTruncating(value, out result);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static bool TryConvertFromTruncating<TOther>(TOther value, out ulong result)
where TOther : INumberBase<TOther>
{
// In order to reduce overall code duplication and improve the inlinabilty of these
// methods for the corelib types we have `ConvertFrom` handle the same sign and
// `ConvertTo` handle the opposite sign. However, since there is an uneven split
// between signed and unsigned types, the one that handles unsigned will also
// handle `Decimal`.
//
// That is, `ConvertFrom` for `ulong` will handle the other unsigned types and
// `ConvertTo` will handle the signed types
if (typeof(TOther) == typeof(byte))
{
byte actualValue = (byte)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(char))
{
char actualValue = (char)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(decimal))
{
decimal actualValue = (decimal)(object)value;
result = (actualValue >= MaxValue) ? MaxValue :
(actualValue <= MinValue) ? MinValue : (ulong)actualValue;
return true;
}
else if (typeof(TOther) == typeof(ushort))
{
ushort actualValue = (ushort)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(uint))
{
uint actualValue = (uint)(object)value;
result = actualValue;
return true;
}
else if (typeof(TOther) == typeof(UInt128))
{
UInt128 actualValue = (UInt128)(object)value;
result = (ulong)actualValue;
return true;
}
else if (typeof(TOther) == typeof(nuint))
{
nuint actualValue = (nuint)(object)value;
result = actualValue;
return true;
}
else
{
result = default;
return false;
}
}
/// <inheritdoc cref="INumberBase{TSelf}.TryConvertToChecked{TOther}(TSelf, out TOther)" />
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static bool INumberBase<ulong>.TryConvertToChecked<TOther>(ulong value, [MaybeNullWhen(false)] out TOther result)
{
// In order to reduce overall code duplication and improve the inlinabilty of these
// methods for the corelib types we have `ConvertFrom` handle the same sign and
// `ConvertTo` handle the opposite sign. However, since there is an uneven split
// between signed and unsigned types, the one that handles unsigned will also
// handle `Decimal`.
//
// That is, `ConvertFrom` for `ulong` will handle the other unsigned types and
// `ConvertTo` will handle the signed types
if (typeof(TOther) == typeof(double))
{
double actualResult = value;
result = (TOther)(object)actualResult;
return true;
}
else if (typeof(TOther) == typeof(Half))
{
Half actualResult = (Half)value;
result = (TOther)(object)actualResult;
return true;
}
else if (typeof(TOther) == typeof(short))
{
short actualResult = checked((short)value);
result = (TOther)(object)actualResult;
return true;
}
else if (typeof(TOther) == typeof(int))
{
int actualResult = checked((int)value);
result = (TOther)(object)actualResult;
return true;
}
else if (typeof(TOther) == typeof(long))
{
long actualResult = checked((long)value);
result = (TOther)(object)actualResult;
return true;
}
else if (typeof(TOther) == typeof(Int128))
{
Int128 actualResult = checked((Int128)value);
result = (TOther)(object)actualResult;
return true;
}
else if (typeof(TOther) == typeof(nint))
{
nint actualResult = checked((nint)value);
result = (TOther)(object)actualResult;
return true;
}
else if (typeof(TOther) == typeof(sbyte))
{
sbyte actualResult = checked((sbyte)value);
result = (TOther)(object)actualResult;