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Unspecified Programming Errors, Example Code?

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The Question is:

Need example of calling SYS$GETUAI, and SYS$HASH_PASSWORD in "C".  Attempting
 to learn "C" and system services at the same time, probably a bad combination?

The Answer is :

  A specific answer to the statement "Tried compiling, got errors"
  is quite simply impossible.  Specific example code and specific
  error messages and specific compiler information are required.
  You must read the OpenVMS Programming Concepts manual and you
  must read the Compaq C programming documentation.  Both of these
  provide the information and various examples.
  The OpenVMS Wizard cannot provide examples of calling arbitrary
  system services in arbitary languages -- though the OpenVMS Wizard
  will mention that there is similarity across system services, and
  examples of calls to common system services such as $getsyi or $getjpi
  can easily be used as models for calls to other system services.
  Various C examples in the Programming Concept manual demonstrate
  calling $getjpi, for instance.
  You will also want to review the OpenVMS FAQ information on C and
  C programming on OpenVMS -- some of the most common C programming
  errors are described in the FAQ, and explanations of core OpenVMS
  data structure constructs durectly relevent to C programmers are
  also provided.  You will also want to avail yourself of the various
  Freeware packages and OpenVMS websites referenced in the OpenVMS FAQ.

answer written or last revised on ( 6-DEC-2001 )

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