Ensures that a given array can hold up to minCapacity elements.
/*
Copyright 1999 CERN - European Organization for Nuclear Research.
Permission to use, copy, modify, distribute and sell this software and its documentation for any purpose
is hereby granted without fee, provided that the above copyright notice appear in all copies and
that both that copyright notice and this permission notice appear in supporting documentation.
CERN makes no representations about the suitability of this software for any purpose.
It is provided "as is" without expressed or implied warranty.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace DiscoveryLogic.Common.Numeric
{
public class Arrays : System.Object
{
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static sbyte[] ensureCapacity(sbyte[] array, int minCapacity)
{
int oldCapacity = array.Length;
sbyte[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new sbyte[newCapacity];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static short[] ensureCapacity(short[] array, int minCapacity)
{
int oldCapacity = array.Length;
short[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new short[newCapacity];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static bool[] ensureCapacity(bool[] array, int minCapacity)
{
int oldCapacity = array.Length;
bool[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new bool[newCapacity];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static char[] ensureCapacity(char[] array, int minCapacity)
{
int oldCapacity = array.Length;
char[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new char[newCapacity];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static double[] ensureCapacity(double[] array, int minCapacity)
{
int oldCapacity = array.Length;
double[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new double[newCapacity];
//for (int i = oldCapacity; --i >= 0; ) newArray[i] = array[i];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static float[] ensureCapacity(float[] array, int minCapacity)
{
int oldCapacity = array.Length;
float[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new float[newCapacity];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static int[] ensureCapacity(int[] array, int minCapacity)
{
int oldCapacity = array.Length;
int[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new int[newCapacity];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static long[] ensureCapacity(long[] array, int minCapacity)
{
int oldCapacity = array.Length;
long[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new long[newCapacity];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
/// <summary> Ensures that a given array can hold up to <tt>minCapacity</tt> elements.
///
/// Returns the identical array if it can hold at least the number of elements specified.
/// Otherwise, returns a new array with increased capacity containing the same elements, ensuring
/// that it can hold at least the number of elements specified by
/// the minimum capacity argument.
///
/// </summary>
/// <param name="minCapacity"> the desired minimum capacity.
/// </param>
public static System.Object[] ensureCapacity(System.Object[] array, int minCapacity)
{
int oldCapacity = array.Length;
System.Object[] newArray;
if (minCapacity > oldCapacity)
{
int newCapacity = (oldCapacity * 3) / 2 + 1;
if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
newArray = new System.Object[newCapacity];
Array.Copy(array, 0, newArray, 0, oldCapacity);
}
else
{
newArray = array;
}
return newArray;
}
}
}
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