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refactor!: move Factorial to BinaryIntegerExtensions for .net>=7
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@ -48,5 +48,35 @@ public static class BinaryIntegerExtensions
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TInteger root = TInteger.Abs(value).Mod(nine);
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return int.CreateChecked(root == TInteger.Zero ? nine : root);
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}
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/// <summary>
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/// Returns the factorial of the current binary integer.
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/// </summary>
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/// <param name="value">The value whose factorial to compute.</param>
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/// <returns>The factorial of <paramref name="value" />.</returns>
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/// <exception cref="ArithmeticException"><paramref name="value" /> is less than 0.</exception>
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[Pure]
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[MethodImpl(CompilerResources.MaxOptimization)]
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public static long Factorial<TInteger>(this TInteger value)
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where TInteger : IBinaryInteger<TInteger>
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{
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if (value < TInteger.Zero)
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{
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throw new ArithmeticException(nameof(value));
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}
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if (value == TInteger.Zero)
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{
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return 1;
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}
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var result = 1L;
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for (TInteger i = TInteger.One; i <= value; i++)
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{
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result *= long.CreateChecked(i);
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}
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return result;
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}
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}
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#endif
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@ -42,7 +42,6 @@ public static class ByteExtensions
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int root = value % 9;
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return (byte)(root == 0 ? 9 : root);
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}
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#endif
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/// <summary>
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/// Returns the factorial of the current 8-bit unsigned integer.
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@ -66,6 +65,7 @@ public static class ByteExtensions
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return result;
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}
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#endif
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/// <summary>
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/// Calculates the greatest common factor between the current 8-bit unsigned integer, and another 8-bit unsigned integer.
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@ -41,7 +41,6 @@ public static class Int16Extensions
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short root = System.Math.Abs(value).Mod(9);
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return root < 1 ? (short)(9 - root) : root;
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}
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#endif
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/// <summary>
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/// Returns the factorial of the current 16-bit signed integer.
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@ -71,6 +70,7 @@ public static class Int16Extensions
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return result;
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}
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#endif
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/// <summary>
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/// Calculates the greatest common factor between the current 16-bit signed integer, and another 16-bit signed integer.
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@ -41,7 +41,6 @@ public static class Int32Extensions
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int root = System.Math.Abs(value).Mod(9);
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return root < 1 ? 9 - root : root;
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}
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#endif
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/// <summary>
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/// Returns the factorial of the current 32-bit signed integer.
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@ -71,6 +70,7 @@ public static class Int32Extensions
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return result;
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}
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#endif
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/// <summary>
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/// Calculates the greatest common factor between the current 32-bit signed integer, and another 32-bit signed integer.
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@ -41,7 +41,6 @@ public static class Int64Extensions
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long root = System.Math.Abs(value).Mod(9L);
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return root < 1L ? 9L - root : root;
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}
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#endif
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/// <summary>
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/// Returns the factorial of the current 64-bit signed integer.
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@ -71,6 +70,7 @@ public static class Int64Extensions
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return result;
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}
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#endif
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/// <summary>
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/// Calculates the greatest common factor between the current 64-bit signed integer, and another 64-bit unsigned integer.
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@ -42,7 +42,6 @@ public static class SByteExtensions
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int root = System.Math.Abs(value).Mod(9);
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return (sbyte)(root < 1 ? 9 - root : root);
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}
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#endif
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/// <summary>
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/// Returns the factorial of the current 8-bit signed integer.
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@ -72,6 +71,7 @@ public static class SByteExtensions
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return result;
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}
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#endif
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/// <summary>
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/// Calculates the greatest common factor between the current 8-bit signed integer, and another 8-bit signed integer.
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@ -42,7 +42,6 @@ public static class UInt16Extensions
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var root = (ushort)(value % 9);
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return (ushort)(root == 0 ? 9 : root);
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}
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#endif
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/// <summary>
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/// Returns the factorial of the current 16-bit unsigned integer.
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@ -66,6 +65,7 @@ public static class UInt16Extensions
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return result;
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}
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#endif
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/// <summary>
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/// Calculates the greatest common factor between the current 16-bit unsigned integer, and another 16-bit unsigned
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@ -42,7 +42,6 @@ public static class UInt32Extensions
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uint root = value % 9;
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return root == 0 ? 9 : root;
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}
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#endif
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/// <summary>
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/// Returns the factorial of the current 32-bit unsigned integer.
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@ -66,6 +65,7 @@ public static class UInt32Extensions
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return result;
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}
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#endif
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/// <summary>
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/// Calculates the greatest common factor between the current 32-bit unsigned integer, and another 32-bit unsigned
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@ -42,7 +42,6 @@ public static class UInt64Extensions
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ulong root = value % 9;
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return root == 0 ? 9 : root;
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}
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#endif
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/// <summary>
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/// Returns the factorial of the current 64-bit unsigned integer.
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@ -66,6 +65,7 @@ public static class UInt64Extensions
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return result;
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}
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#endif
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/// <summary>
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/// Calculates the greatest common factor between the current 64-bit unsigned integer, and another 64-bit unsigned
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