/// <summary>
/// Set position indicator of stream
/// Restores the current position in the stream to pos.
///
/// The internal file position indicator associated with stream is set to the position represented by
/// pos, which is a pointer to an fpos_t object whose value shall have been previously obtained by a call
/// to fgetpos.
///
/// The end-of-file internal indicator of the stream is cleared after a successful call to this function,
/// and all effects from previous calls to ungetc on this stream are dropped.
///
/// On streams open for update (read+write), a call to fsetpos allows to switch between reading and writing.
///
/// A similar function, fseek, can be used to set arbitrary positions on streams open in binary mode.
/// </summary>
/// <param name="fileNum"></param>
/// <param name="pos"></param>
/// <returns>
/// If successful, the function returns zero.
/// On failure, a non-zero value is returned and errno is set to a system-specific positive value.
/// </returns>
public int FSetPos(int fileNum, FPos_T pos)
{
// Does nothing right now
throw new NotImplementedException("Not Implemented");
}
/// <summary>
/// Get current position in stream
/// Retrieves the current position in the stream.
///
/// The function fills the fpos_t object pointed by pos with the information needed from the stream's position
/// indicator to restore the stream to its current position (and multibyte state, if wide-oriented) with a call
/// to fsetpos.
///
/// The ftell function can be used to retrieve the current position in the stream as an integer value.
/// </summary>
/// <param name="fileNum"></param>
/// <param name="pos"></param>
/// <returns>
/// On success, the function returns zero.
/// In case of error, errno is set to a platform-specific positive value and the function returns a non-zero value.
/// </returns>
public int FGetPos(int fileNum, FPos_T pos)
{
if (pos == null)
pos = new FPos_T();
try
{
pos.off = GetPosition(fileNum);
return 0;
}
catch (Exception ex)
{
}
return -1;
}