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[smlnj] View of /sml/trunk/src/runtime/c-libs/posix-io/fcntl_d.c
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View of /sml/trunk/src/runtime/c-libs/posix-io/fcntl_d.c

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Revision 2 - (download) (as text) (annotate)
Sat Oct 4 23:33:09 1997 UTC (22 years, 9 months ago) by monnier
File size: 582 byte(s)
Initial revision
/* fcntl_d.c
 *
 * COPYRIGHT (c) 1995 by AT&T Bell Laboratories.
 */

#include "ml-unixdep.h"
#include <fcntl.h>
#include "ml-base.h"
#include "ml-values.h"
#include "ml-objects.h"
#include "ml-c.h"
#include "cfun-proto-list.h"

/* _ml_P_IO_fcntl_d : int * int -> int
 *
 * Duplicate an open file descriptor
 */
ml_val_t _ml_P_IO_fcntl_d (ml_state_t *msp, ml_val_t arg)
{
    int             fd;
    int             fd0 = REC_SELINT(arg, 0);
    int             fd1 = REC_SELINT(arg, 1);

    fd = fcntl(fd0, F_DUPFD, fd1);

    CHK_RETURN(msp, fd)

} /* end of _ml_P_IO_fcntl_d */

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