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The Question is:
We have an indexed variable file, I would like to write a C program to read the
records sequentially from the file, could you point me to some sample code
The Answer is :
The OpenVMS Wizard simply cannot provide examples of calling arbitrary
system services in arbitary languages. The OpenVMS Wizard will mention
that there are great similarities across system services, and examples
of calls to common system services such as $getsyi or $getjpi or $get
can easily be used as models for calls to other system services; that
you can often use unrelated examples, particularly once you have an
understanding of the OpenVMS APIs and the OpenVMS calling standard.
The calling standard is documented in the OpenVMS documentation set,
of course.
As for the question at hand, please see the information on the support
resources and on sources for example code listed in the OpenVMS Frequently
Asked Questions (FAQ), and the C User's Guide manual contains examples of
RMS calls (in the chapter entitled "Using OpenVMS Record Management
Services"). Also of central interest here will be the RMS reference
manual within the OpenVMS documentation set, and that manual also
includes a chapter entitled "Implementing RMS from C Programs".
Ask The Wizard Topics here include (367), (1334), (1534), (2821),
(2608), (2867), (3261), (6356), (6884), (6916), (7008), and very
likely other topics -- in addition to the resources and manuals
cited above, that is. You will also particularly want to review
topic (1550), as it is also possible to use C RTL calls to access
RMS indexed files -- this is described in the C manuals. Also see
topic (1661) for general programming information, as well as also
reviewing the C programming information within the OpenVMS FAQ.
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