Routines of existence
====================


.. code-block:: text

    CALL RSEXIS (names, irets)


.. csv-table::

    "IN", "nomsd", "K8", "data structure name RESULTAT"
    "OUT ", "iret", "I", "return code:
    = 0, the structure exists;
    ? 0, the structure does not exist."


Verification of the existence of a structure SD_RESULTAT.


.. code-block:: text

    CALL RSEXPA (names, icode, name, iret)


.. csv-table::

    "IN", "nomsd", "K8", "data structure name RESULTAT"
    "IN", "icode", "I", "= 0, access variable
    = 1, parameter
    = 2, access variable or parameter"
    "IN", "name by", "K16", "name of the access parameter or variable"
    "OUT ", "iret", "I", "return code:
    = 0, the name does not exist;
    = 100, the name exists."


Checking the existence of a parameter name or an access variable name in a SD_RESULTAT structure.


.. code-block:: text

    CALL RSVPAR (name, order, name, par, ipar, rpar, kpar, iret)


.. csv-table::

    "IN", "nomsd", "K8", "data structure name RESULTAT"
    "IN", "iordr", "I", "order number"
    "IN", "name by", "K16", "name of the parameter to check"
    "IN", "ipar", "I", "parameter value if integer"
    "IN", "rpar", "R8", "parameter value if real"
    "IN", "kpar", "K. ", "parameter value if character"
    "OUT ", "iret", "I", "return code:
    = 0, it is not a parameter
    = 100, the parameter value is correct
    = 110, the parameter value is not correct"


Checking the existence of a parameter name and its value for a given order number in a SD_RESULTAT structure.