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using System;
using System.Collections;
using System.Text;
namespace Org.BouncyCastle.Utilities.Collections
{
public sealed class CollectionUtilities
{
private CollectionUtilities()
{
}
public static void AddRange(IList to, ICollection range)
{
foreach (object o in range)
{
to.Add(o);
}
}
public static bool CheckElementsAreOfType(
IEnumerable e,
Type t)
{
foreach (object o in e)
{
if (!t.IsInstanceOfType(o))
return false;
}
return true;
}
public static IDictionary ReadOnly(IDictionary d)
{
return new UnmodifiableDictionaryProxy(d);
}
public static IList ReadOnly(IList l)
{
return new UnmodifiableListProxy(l);
}
public static ISet ReadOnly(ISet s)
{
return new UnmodifiableSetProxy(s);
}
public static string ToString(
IEnumerable c)
{
StringBuilder sb = new StringBuilder("[");
IEnumerator e = c.GetEnumerator();
if (e.MoveNext())
{
sb.Append(e.Current.ToString());
while (e.MoveNext())
{
sb.Append(", ");
sb.Append(e.Current.ToString());
}
}
sb.Append(']');
return sb.ToString();
}
}
}
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