net9.0 
namespace System
{
    [CLSCompliant(false)]
    public readonly struct UInt64 : IComparable, IComparable<ulong>, IConvertible, IEquatable<ulong>, IFormattable, IParsable<ulong>, ISpanFormattable, ISpanParsable<ulong>, IUtf8SpanFormattable, IUtf8SpanParsable<ulong>, IAdditionOperators<ulong, ulong, ulong>, IAdditiveIdentity<ulong, ulong>, IBinaryInteger<ulong>, IBinaryNumber<ulong>, IBitwiseOperators<ulong, ulong, ulong>, IComparisonOperators<ulong, ulong, bool>, IDecrementOperators<ulong>, IDivisionOperators<ulong, ulong, ulong>, IEqualityOperators<ulong, ulong, bool>, IIncrementOperators<ulong>, IMinMaxValue<ulong>, IModulusOperators<ulong, ulong, ulong>, IMultiplicativeIdentity<ulong, ulong>, IMultiplyOperators<ulong, ulong, ulong>, INumber<ulong>, INumberBase<ulong>, IShiftOperators<ulong, int, ulong>, ISubtractionOperators<ulong, ulong, ulong>, IUnaryNegationOperators<ulong, ulong>, IUnaryPlusOperators<ulong, ulong>, IUnsignedNumber<ulong>
    {
        public static ulong PopCount(ulong value);
    }
}
nuget.org
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Reference this API
.NET 7.08.09.0
Information specific to net9.0
Assembly

System.Runtime , Version=9.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Platform Restrictions

This API is supported on all platforms.

  • Built-in API
  • Package-provided API