mirror of https://github.com/oliverbooth/X10D
Add ByteExtensions and SByteExtensions
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namespace X10D.ByteExtensions
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{
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/// <summary>
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/// Extension methods for <see cref="byte" />.
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/// </summary>
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public static class ByteExtensions
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{
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/// <summary>
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/// Returns the current 8-bit unsigned integer value as an array of bytes.
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/// </summary>
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/// <param name="value">The number to convert.</param>
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/// <returns>An array of bytes with length 1.</returns>
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public static byte[] GetBytes(this byte value)
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{
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return new[] { value };
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}
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/// <summary>
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/// Returns a value indicating whether the current value is evenly divisible by 2.
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/// </summary>
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/// <param name="value">The value whose parity to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is evenly divisible by 2, or <see langword="false" />
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/// otherwise.
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/// </returns>
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public static bool IsEven(this byte value)
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{
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return value % 2 == 0;
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}
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/// <summary>
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/// Returns a value indicating whether the current value is not evenly divisible by 2.
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/// </summary>
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/// <param name="value">The value whose parity to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is not evenly divisible by 2, or <see langword="false" />
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/// otherwise.
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/// </returns>
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public static bool IsOdd(this byte value)
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{
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return !value.IsEven();
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}
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/// <summary>
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/// Returns a value indicating whether the current value is a prime number.
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/// </summary>
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/// <param name="value">The value whose primality to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is prime, or <see langword="false" /> otherwise.
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/// </returns>
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public static bool IsPrime(this byte value)
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{
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return value switch
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{
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2 => true,
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3 => true,
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5 => true,
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7 => true,
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11 => true,
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13 => true,
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17 => true,
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19 => true,
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23 => true,
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29 => true,
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31 => true,
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37 => true,
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41 => true,
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43 => true,
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47 => true,
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53 => true,
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59 => true,
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61 => true,
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67 => true,
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71 => true,
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73 => true,
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79 => true,
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83 => true,
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89 => true,
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97 => true,
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101 => true,
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103 => true,
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107 => true,
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109 => true,
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113 => true,
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127 => true,
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131 => true,
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137 => true,
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139 => true,
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149 => true,
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151 => true,
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157 => true,
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163 => true,
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167 => true,
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173 => true,
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179 => true,
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181 => true,
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191 => true,
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193 => true,
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197 => true,
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199 => true,
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211 => true,
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223 => true,
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227 => true,
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229 => true,
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233 => true,
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239 => true,
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241 => true,
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251 => true,
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_ => false
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};
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}
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/// <summary>
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/// Converts the value of the current 8-bit unsigned integer to an equivalent Boolean value.
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/// </summary>
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/// <param name="value">The 8-bit unsigned integer to convert.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is not zero, or <see langword="false" /> otherwise.
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/// </returns>
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/// <seealso cref="BooleanExtensions.BooleanExtensions.ToByte(bool)" />
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/// <example>
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/// The following example converts an array of <see cref="byte" /> values to <see cref="bool" /> values.
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///
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/// <code lang="csharp">
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/// byte[] bytes = { byte.MinValue, 100, 200, byte.MaxValue };
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/// bool result;
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///
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/// foreach (byte value in bytes)
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/// {
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/// result = value.ToBoolean();
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/// Console.WriteLine("{0, -5} --> {1}", value, result);
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/// }
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///
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/// // The example displays the following output:
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/// // 0 --> False
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/// // 100 --> True
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/// // 200 --> True
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/// // 255 --> True
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/// </code>
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/// </example>
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public static bool ToBoolean(this byte value)
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{
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return value != 0;
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}
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}
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}
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@ -0,0 +1,116 @@
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using System;
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namespace X10D.ByteExtensions
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{
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/// <summary>
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/// Extension methods for <see cref="sbyte" />.
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/// </summary>
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[CLSCompliant(false)]
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public static class SByteExtensions
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{
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/// <summary>
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/// Returns a value indicating whether the current value is evenly divisible by 2.
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/// </summary>
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/// <param name="value">The value whose parity to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is evenly divisible by 2, or <see langword="false" />
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/// otherwise.
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/// </returns>
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public static bool IsEven(this sbyte value)
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{
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return value % 2 == 0;
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}
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/// <summary>
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/// Returns a value indicating whether the current value is not evenly divisible by 2.
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/// </summary>
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/// <param name="value">The value whose parity to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is not evenly divisible by 2, or <see langword="false" />
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/// otherwise.
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/// </returns>
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public static bool IsOdd(this sbyte value)
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{
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return !value.IsEven();
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}
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/// <summary>
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/// Returns a value indicating whether the current value is a prime number.
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/// </summary>
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/// <param name="value">The value whose primality to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is prime, or <see langword="false" /> otherwise.
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/// </returns>
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public static bool IsPrime(this sbyte value)
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{
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return value switch
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{
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2 => true,
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3 => true,
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5 => true,
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7 => true,
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11 => true,
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13 => true,
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17 => true,
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19 => true,
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23 => true,
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29 => true,
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31 => true,
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37 => true,
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41 => true,
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43 => true,
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47 => true,
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53 => true,
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59 => true,
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61 => true,
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67 => true,
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71 => true,
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73 => true,
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79 => true,
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83 => true,
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89 => true,
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97 => true,
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101 => true,
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103 => true,
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107 => true,
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109 => true,
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113 => true,
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127 => true,
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_ => false
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};
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}
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/// <summary>
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/// Converts the value of the current 8-bit signed integer to an equivalent Boolean value.
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/// </summary>
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/// <param name="value">The 8-bit signed integer to convert.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is not zero, or <see langword="false" /> otherwise.
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/// </returns>
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/// <seealso cref="BooleanExtensions.BooleanExtensions.ToByte(bool)" />
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/// <example>
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/// The following example converts an array of <see cref="byte" /> values to <see cref="bool" /> values.
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///
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/// <code lang="csharp">
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/// byte[] bytes = { byte.MinValue, 100, 200, byte.MaxValue };
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/// bool result;
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///
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/// foreach (byte value in bytes)
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/// {
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/// result = value.ToBoolean();
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/// Console.WriteLine("{0, -5} --> {1}", value, result);
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/// }
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///
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/// // The example displays the following output:
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/// // 0 --> False
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/// // 100 --> True
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/// // 200 --> True
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/// // 255 --> True
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/// </code>
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/// </example>
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public static bool ToBoolean(this sbyte value)
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{
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return value != 0;
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}
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}
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}
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