io_close - close a file descriptor

       io_close  eliminates  the  descriptor numbered fd. This usually does not mean eliminating the object that
       the descriptor is talking to.  (For example, if a descriptor writes to a named  disk  file,  closing  the
       descriptor will not remove the file; it simply removes one way of writing to the file. On the other hand,
       a pipe disappears as soon as no descriptors refer to it.)

       io_close  has no return value; it always succeeds in deallocating the memory used for the descriptor.  If
       fd is not the number of a descriptor, io_close has no effect.

       io_close() is like close(), but  it  also  removes  the  descriptor  from  the  internal  io_wait()  data
       structures.  If you called io_fd on a descriptor, you need to use io_close to close it, not just close().

       io_close - close a file descriptor

io_wait(3), io_canwrite(3)

                                                                                                     io_close(3)

#include<libowfat/io.h>

       void io_close(int64 fd);