Mercurial > hg > ucis.core
annotate Util/ArrayUtil.cs @ 90:57b4c2f895d1
USBLib: added DeviceNode.GetStatus
| author | Ivo Smits <Ivo@UCIS.nl> |
|---|---|
| date | Wed, 02 Apr 2014 16:24:55 +0200 |
| parents | c9da306e06c9 |
| children | ebdff34b9e4f |
| rev | line source |
|---|---|
| 0 | 1 ???using System; |
|
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2 using System.Collections; |
| 0 | 3 using System.Collections.Generic; |
| 4 | |
| 5 namespace UCIS.Util { | |
| 6 public class ArrayUtil { | |
| 7 public static T[] Slice<T>(T[] input, int offset) { | |
| 8 if (offset < 0) offset = input.Length + offset; | |
| 9 return Slice(input, offset, input.Length - offset); | |
| 10 } | |
| 11 public static T[] Slice<T>(T[] input, int offset, int count) { | |
| 12 if (offset < 0) offset = input.Length + offset; | |
| 13 if (count < 0) count = input.Length + count - offset; | |
| 14 T[] output = new T[count]; | |
| 15 Array.Copy(input, offset, output, 0, count); | |
| 16 return output; | |
| 17 } | |
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18 public static Object[] ToArray(ICollection input) { |
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19 Object[] output = new Object[input.Count]; |
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20 input.CopyTo(output, 0); |
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21 return output; |
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22 } |
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23 public static T[] ToArray<T>(ICollection input) { |
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24 T[] output = new T[input.Count]; |
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25 input.CopyTo(output, 0); |
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26 return output; |
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27 } |
| 0 | 28 public static T[] ToArray<T>(ICollection<T> input) { |
| 29 T[] output = new T[input.Count]; | |
| 30 input.CopyTo(output, 0); | |
| 31 return output; | |
| 32 } | |
| 9 | 33 public static T[] ToArray<T>(ArraySegment<T> input) { |
| 34 return Slice(input.Array, input.Offset, input.Count); | |
| 35 } | |
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36 public static T[] ToArray<T>(T[] input) { |
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37 return (T[])input.Clone(); |
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38 } |
| 80 | 39 public static T[] Convert<T>(IList input, Converter<Object, T> converter) { |
| 40 T[] output = new T[input.Count]; | |
| 41 for (int i = 0; i < output.Length; i++) output[i] = converter(input[i]); | |
| 42 return output; | |
| 43 } | |
| 0 | 44 public static IList<T> ToList<T>(IEnumerable<T> input) { |
| 45 return new List<T>(input); | |
| 46 } | |
| 47 public static void GnomeSort<T>(IList<T> a, Comparison<T> comparer) { | |
| 48 int pos = 1; | |
| 49 while (pos < a.Count) { | |
| 50 if (comparer(a[pos], a[pos - 1]) >= 0) { | |
| 51 pos++; | |
| 52 } else { | |
| 53 T tmp = a[pos]; | |
| 54 a[pos] = a[pos - 1]; | |
| 55 a[pos - 1] = tmp; | |
| 56 if (pos > 1) pos--; else pos++; | |
| 57 } | |
| 58 } | |
| 59 } | |
| 60 //Array shuffle | |
| 61 //Array unique | |
| 62 public static T[] Merge<T>(params ArraySegment<T>[] parts) { | |
| 63 int count = 0; | |
| 64 foreach (ArraySegment<T> segment in parts) count += segment.Count; | |
| 65 T[] ret = new T[count]; | |
| 66 int offset = 0; | |
| 67 foreach (ArraySegment<T> segment in parts) { | |
| 68 Array.Copy(segment.Array, segment.Offset, ret, offset, segment.Count); | |
| 69 offset += segment.Count; | |
| 70 } | |
| 71 return ret; | |
| 72 } | |
| 73 public static T[] Merge<T>(params T[][] parts) { | |
| 74 int count = 0; | |
| 75 foreach (T[] segment in parts) count += segment.Length; | |
| 76 T[] ret = new T[count]; | |
| 77 int offset = 0; | |
| 78 foreach (T[] segment in parts) { | |
| 79 segment.CopyTo(ret, offset); | |
| 80 offset += segment.Length; | |
| 81 } | |
| 82 return ret; | |
| 83 } | |
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84 public static T[] Merge<T>(params IList<T>[] parts) { |
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85 int count = 0; |
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86 foreach (IList<T> segment in parts) count += segment.Count; |
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87 T[] ret = new T[count]; |
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88 int offset = 0; |
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89 foreach (IList<T> segment in parts) { |
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90 segment.CopyTo(ret, offset); |
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91 offset += segment.Count; |
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92 } |
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93 return ret; |
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94 } |
| 0 | 95 public static Boolean Equal<T>(T[] a, T[] b, IEqualityComparer<T> comparer) { |
| 96 if (ReferenceEquals(a, b)) return true; | |
| 97 if (a == null || b == null) return false; | |
| 98 if (a.Length != b.Length) return false; | |
| 99 for (int i = 0; i < a.Length; i++) if (!comparer.Equals(a[i], b[i])) return false; | |
| 100 return true; | |
| 101 } | |
| 102 public static Boolean Equal<T>(T[] a, T[] b) where T : IEquatable<Byte> { | |
| 103 if (ReferenceEquals(a, b)) return true; | |
| 104 if (a == null || b == null) return false; | |
| 105 if (a.Length != b.Length) return false; | |
| 106 for (int i = 0; i < a.Length; i++) { | |
| 107 if (ReferenceEquals(a[i], b[i])) continue; | |
| 108 if (ReferenceEquals(a[i], null) || ReferenceEquals(b[i], null)) continue; | |
| 109 if (!a[i].Equals(b[i])) return false; | |
| 110 } | |
| 111 return true; | |
| 112 } | |
| 113 public static Boolean Equal(Byte[] a, Byte[] b) { | |
| 114 if (ReferenceEquals(a, b)) return true; | |
| 115 if (a == null || b == null) return false; | |
| 116 if (a.Length != b.Length) return false; | |
| 117 for (int i = 0; i < a.Length; i++) if (a[i] != b[i]) return false; | |
| 118 return true; | |
| 119 } | |
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120 public static int GetHashCode<T>(T[] array) { |
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121 int h = 0; |
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122 foreach (T v in array) h ^= v.GetHashCode(); |
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123 return h; |
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124 } |
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125 public static int Add<T>(ref T[] array, params T[] items) { |
| 19 | 126 if (array == null) { |
| 127 array = new T[items.Length]; | |
| 128 items.CopyTo(array, 0); | |
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129 return 0; |
| 19 | 130 } else { |
| 131 int index = array.Length; | |
| 132 Array.Resize(ref array, index + items.Length); | |
| 133 items.CopyTo(array, index); | |
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134 return index; |
| 19 | 135 } |
| 136 } | |
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137 public static int Add<T>(ref T[] array, ICollection<T> items) { |
| 19 | 138 if (array == null) { |
| 139 array = new T[items.Count]; | |
| 140 items.CopyTo(array, 0); | |
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141 return 0; |
| 19 | 142 } else { |
| 143 int index = array.Length; | |
| 144 Array.Resize(ref array, index + items.Count); | |
| 145 items.CopyTo(array, index); | |
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146 return index; |
| 19 | 147 } |
| 148 } | |
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149 public static int Add<T>(ref T[] array, T item) { |
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150 if (array == null) { |
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151 array = new T[] { item }; |
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152 return 0; |
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153 } else { |
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154 int index = array.Length; |
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155 Array.Resize(ref array, index + 1); |
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156 array[index] = item; |
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157 return index; |
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158 } |
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159 } |
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160 public static int AddUnique<T>(ref T[] array, T item) { |
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161 int index = Array.IndexOf(array, item); |
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162 if (index == -1) index = Add(ref array, item); |
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163 return index; |
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164 } |
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165 public static Boolean Remove<T>(ref T[] array, T item) { |
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166 if (array == null) return false; |
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167 int index = Array.IndexOf(array, item); |
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168 if (index == -1) return false; |
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169 T[] newarray = new T[array.Length - 1]; |
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170 if (index > 0) Array.Copy(array, 0, newarray, 0, index); |
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171 if (index < array.Length - 1) Array.Copy(array, index + 1, newarray, index, array.Length - index - 1); |
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172 array = newarray; |
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173 return true; |
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174 } |
| 0 | 175 } |
| 176 } |