GrowingArray.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / System / Linq / Parallel / Utils / GrowingArray.cs / 1305376 / GrowingArray.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
// =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// 
// GrowingArray.cs 
//
// [....] 
//
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

using System.Diagnostics.Contracts; 

namespace System.Linq.Parallel 
{ 
    /// 
    /// A growing array. Unlike List{T}, it makes the internal array available to its user. 
    /// 
    /// 
    internal class GrowingArray
    { 
        T[] m_array;
        int m_count; 
        const int DEFAULT_ARRAY_SIZE = 1024; 

        internal GrowingArray() 
        {
            m_array = new T[DEFAULT_ARRAY_SIZE];
            m_count = 0;
        } 

        //---------------------------------------------------------------------------------------- 
        // Returns the internal array representing the list. Note that the array may be larger 
        // than necessary to hold all elements in the list.
        // 

        internal T[] InternalArray
        {
            get { return m_array; } 
        }
 
        internal int Count 
        {
            get { return m_count; } 
        }

        internal void Add(T element)
        { 
            if (m_count >= m_array.Length)
            { 
                GrowArray(2 * m_array.Length); 
            }
            m_array[m_count++] = element; 
        }

        private void GrowArray(int newSize)
        { 
            Contract.Assert(newSize > m_array.Length);
 
            T[] array2 = new T[newSize]; 
            m_array.CopyTo(array2, 0);
            m_array = array2; 
        }

        internal void CopyFrom(T[] otherArray, int otherCount)
        { 
            // Ensure there is just enough room for both.
            if (m_count + otherCount > m_array.Length) 
            { 
                GrowArray(m_count + otherCount);
            } 

            // And now just blit the keys directly.
            Array.Copy(otherArray, 0, m_array, m_count, otherCount);
            m_count += otherCount; 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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