otherlibs/unix/dup.c


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/***********************************************************************/
/*                                                                     */
/*                                OCaml                                */
/*                                                                     */
/*            Xavier Leroy, projet Cristal, INRIA Rocquencourt         */
/*                                                                     */
/*  Copyright 1996 Institut National de Recherche en Informatique et   */
/*  en Automatique.  All rights reserved.  This file is distributed    */
/*  under the terms of the GNU Library General Public License, with    */
/*  the special exception on linking described in file ../../LICENSE.  */
/*                                                                     */
/***********************************************************************/

#include <mlvalues.h>
#include "unixsupport.h"

CAMLprim value unix_dup(value fd)
{
  int ret;
  ret = dup(Int_val(fd));
  if (ret == -1) uerror("dup", Nothing);
  return Val_int(ret);
}