internal BigInteger Decode(string value)
{
BigInteger r = 0;
if (caseSensitive)
{
foreach (char c in value)
{
if (!this.baseEntities.Contains(c))
{
throw NumericsThrowHelper.ObtainArgumentException(ArgumentWithException.value, ExceptionMessageId.NumericValueParseError, c.ToString());
}
}
for (byte b = 0; b < value.Length; b++)
{
r += ShiftBaseValue((int)baseEntities.IndexOf(value[b]), (byte)(value.Length - (b + 1)));
}
}
else
{
value = value.ToUpper();
for (byte b = 0; b < value.Length; b++)
{
char c = value[b];
if (!this.baseEntities.Contains(c))
{
throw NumericsThrowHelper.ObtainArgumentException(ArgumentWithException.value, ExceptionMessageId.NumericValueParseError, c.ToString());
}
r += ShiftBaseValue((int)baseEntities.IndexOf(c), (byte)(value.Length - (b + 1)));
}
}
return((BigInteger)r);
}
/// <summary>
/// Checks the <paramref name="array"/>, <paramref name="arrayIndex"/> and
/// <paramref name="count"/> to make sure they are in bounds.
/// </summary>
/// <param name="array">The <see cref="Array"/> to check the <paramref name="arrayIndex"/> and <paramref name="Count"/> against.</param>
/// <param name="arrayIndex">The <see cref="Int32"/> value which denotes where within the target <paramref name="array"/>
/// to start the copy.</param>
/// <param name="count">The <see cref="Int32"/> value denoting the number of elements to be copied
/// into <paramref name="array"/>.</param>
public static void CopyToCheck(Array array, int arrayIndex, int count)
{
if (array == null)
{
throw new ArgumentNullException(NumericsThrowHelper.GetArgumentName(ArgumentWithException.array));
}
if (array.Length < count)
{
throw NumericsThrowHelper.ObtainArgumentException(ArgumentWithException.array, ExceptionMessageId.InsufficientSpaceForCopy);
}
if (arrayIndex < 0 ||
arrayIndex + count > array.Length)
{
throw new ArgumentOutOfRangeException("arrayIndex");
}
}
