/// <summary>
/// Repositions this stream to the position at the time the
/// <code>mark</code> method was last called on this input stream.
///
/// <para> The general contract of <code>reset</code> is:
///
/// </para>
/// <para><ul>
///
/// <li> If the method <code>markSupported</code> returns
/// <code>true</code>, then:
///
/// <ul><li> If the method <code>mark</code> has not been called since
/// the stream was created, or the number of bytes read from the stream
/// since <code>mark</code> was last called is larger than the argument
/// to <code>mark</code> at that last call, then an
/// <code>IOException</code> might be thrown.
///
/// <li> If such an <code>IOException</code> is not thrown, then the
/// stream is reset to a state such that all the bytes read since the
/// most recent call to <code>mark</code> (or since the start of the
/// file, if <code>mark</code> has not been called) will be resupplied
/// to subsequent callers of the <code>read</code> method, followed by
/// any bytes that otherwise would have been the next input data as of
/// the time of the call to <code>reset</code>. </ul>
///
/// <li> If the method <code>markSupported</code> returns
/// <code>false</code>, then:
///
/// <ul><li> The call to <code>reset</code> may throw an
/// <code>IOException</code>.
///
/// <li> If an <code>IOException</code> is not thrown, then the stream
/// is reset to a fixed state that depends on the particular type of the
/// input stream and how it was created. The bytes that will be supplied
/// to subsequent callers of the <code>read</code> method depend on the
/// particular type of the input stream. </ul></ul>
///
/// </para>
/// <para> The method <code>reset</code> for class <code>InputStream</code>
/// does nothing and always throws an <code>IOException</code>.
///
/// </para>
/// </summary>
/// <exception cref="IOException"> if this stream has not been marked or if the
/// mark has been invalidated. </exception>
/// <seealso cref= java.io.InputStream#mark(int) </seealso>
/// <seealso cref= System.IO.IOException </seealso>
public virtual void reset()
{
if (fd != null)
{
fd.reset();
}
}
