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

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Revision 223 - (download) (as text) (annotate)
Sat Apr 17 16:27:01 1999 UTC (21 years, 3 months ago) by monnier
Original Path: sml/branches/SMLNJ/src/runtime/c-libs/posix-io/write.c
File size: 726 byte(s)
version 110.11
/* write.c
 *
 * COPYRIGHT (c) 1995 by AT&T Bell Laboratories.
 */

#include "ml-unixdep.h"
#include <unistd.h>
#include "ml-objects.h"
#include "ml-c.h"
#include "cfun-proto-list.h"


/* _ml_P_IO_write : (int * Word8Vector.vector * int) -> int
 *
 * Write the number of bytes of data from the given vector,
 * starting at index 0, to the specified file.  Return the
 * number of bytes written. Assume bounds checks have been done.
 */
ml_val_t _ml_P_IO_write (ml_state_t *msp, ml_val_t arg)
{
    int		fd = REC_SELINT(arg, 0);
    ml_val_t	data = REC_SEL(arg, 1);
    size_t	nbytes = REC_SELINT(arg, 2);
    ssize_t    	n;

    n = write (fd, STR_MLtoC(data), nbytes);

    CHK_RETURN (msp, n)

} /* end of _ml_P_IO_write */

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