ios_dir_isa(A)

IOS_DIR_$ISA                      Domain/OS                       IOS_DIR_$ISA


NAME
     ios_dir_$isa - test whether a stream is open on a directory

SYNOPSIS (C)
     #include <apollo/base.h>
     #include <apollo/ios_dir.h>

     void ios_dir_$isa(
          ios_$id_t &stream_id,
          status_$t *status)

SYNOPSIS (Pascal)
     %include '/sys/ins/base.ins.pas';
     %include '/sys/ins/ios_dir.ins.pas';

     procedure ios_dir_$isa(
          in stream_id: ios_$id_t;
          out status: status_$t);

SYNOPSIS (FORTRAN)
     %include '/sys/ins/base.ins.ftn'

           integer*2 stream_id
           integer*4 status

           call ios_dir_$isa(stream_id, status)

DESCRIPTION
     Ios_dir_$isa returns with status equal to status_$ok if and only if the
     stream specified by stream_id is open on a directory.

     stream_id
          The ID for the stream to test.

     status
          The completion status.  If status equals status_$ok, then the stream
          is open on a directory; otherwise, the stream is not open on a
          directory.
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