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Status Not under consideration
Workspace IBM i
Created by Guest
Created on Dec 29, 2020

Allow CL to Pass Strings to RPG OPTIONS(*STRING) Parameters

Please allow the CALLPRC command to pass a string to an RPG procedure parameter that is defined as POINTER OPTIONS(*STRING).

Use Case:

Currently, I still have to pass a pointer to such a parameter:

dcl &p_code *ptr
chgvar &code 'AAT990'
chgvar &p_code %addr(&code)
callprc ENTI01 ((&p_code)) &sequence

Since OPTIONS(*STRING) is designed to have a string passed to it, it would be good if CL could do that. Also, the string would be correctly delimited with x'00'.

chgvar &code 'AAT990'
callprc ENTI01 ((&code)) &sequence


callprc ENTI01 (('AAT990')) &sequence

Idea priority Low
  • Guest
    Jan 4, 2021

    When calling from CLLE, for an RPG parameter that is defined as POINTER VALUE OPTIONS(*STRING), you can either pass a pointer by value or a character variable by reference. Either way, you need to ensure that the value ends with x'00'.

    Assuming the RPG parameter is defined with the VALUE keyword, your call could be like this.

    chgvar (&code 'AAT990' *tcat x'00') /* append the x'00' */
    callprc ENTI01 ((&code)) &sequence /* pass &code *byref */

    Again, assuming the RPG procedure has the VALUE keyword, when you pass the pointer, you should add *BYVAL:
    chgvar (&code 'AAT990' *tcat x'00') /* append the x'00' */
    chgvar &p_code %addr(&code)
    callprc ENTI01 ((&p_code *byval)) &sequence /* add *BYVAL for the pointer */