source: branches/2434_crossvalidation/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory-5.5.0/Utils/BitVector16.cs

// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using System;
using System.Globalization;

namespace ICSharpCode.NRefactory.Utils
{
  /// <summary>
  /// Holds 16 boolean values.
  /// </summary>
  [Serializable]
  [CLSCompliant(false)]
  public struct BitVector16 : IEquatable<BitVector16>
  {
    ushort data;
    
    public bool this[ushort mask] {
      get { return (data & mask) != 0; }
      set {
        if (value)
          data |= mask;
        else
          data &= unchecked((ushort)~mask);
      }
    }
    
    public ushort Data {
      get { return data; }
      set { data = value; }
    }
    
    #region Equals and GetHashCode implementation
    public override bool Equals(object obj)
    {
      if (obj is BitVector16)
        return Equals((BitVector16)obj); // use Equals method below
      else
        return false;
    }
    
    public bool Equals(BitVector16 other)
    {
      return this.data == other.data;
    }
    
    public override int GetHashCode()
    {
      return data;
    }
    
    public static bool operator ==(BitVector16 left, BitVector16 right)
    {
      return left.data == right.data;
    }
    
    public static bool operator !=(BitVector16 left, BitVector16 right)
    {
      return left.data != right.data;
    }
    #endregion
    
    public override string ToString()
    {
      return data.ToString("x4", CultureInfo.InvariantCulture);
    }
  }
}