2 * Novacoin classes library
3 * Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU Affero General Public License as
7 * published by the Free Software Foundation, either version 3 of the
8 * License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Affero General Public License for more details.
15 * You should have received a copy of the GNU Affero General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 using System.Collections.Generic;
21 using System.Diagnostics.Contracts;
27 public class COutPoint : IComparable<COutPoint>, IEquatable<COutPoint>
30 /// Hash of parent transaction.
35 /// Parent input number.
40 /// Out reference is always 36 bytes long.
42 public const int Size = 36;
50 public COutPoint(Hash256 hashIn, uint nIn)
56 public COutPoint(COutPoint o)
58 hash = new Hash256(o.hash);
62 public COutPoint(byte[] bytes)
64 Contract.Requires<ArgumentException>(bytes.Length == 36, "Any valid outpoint reference data item is exactly 36 bytes long.");
66 hash = new Hash256(bytes);
67 n = BitConverter.ToUInt32(bytes, 32);
72 get { return hash.IsZero && n == uint.MaxValue; }
75 public static implicit operator byte[] (COutPoint o)
77 var stream = new MemoryStream();
78 var writer = new BinaryWriter(stream);
83 var outBytes = stream.ToArray();
90 public override string ToString()
92 var sb = new StringBuilder();
93 sb.AppendFormat("COutPoint({0}, {1})", hash, n);
99 /// Compare this outpoint with some other.
101 /// <param name="o">Other outpoint.</param>
102 /// <returns>Result of comparison.</returns>
103 public int CompareTo(COutPoint o)
119 /// Equality comparer for outpoints.
121 /// <param name="o">Other outpoint.</param>
122 /// <returns>Result of comparison.</returns>
123 public bool Equals(COutPoint o)
125 return (o.n == n) && (o.hash == hash);