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  1.  Home
  2. RPG400-L
  3. October 2002

Re: set a pointer to const

Steve Richter wrote:
>
> I have C and C++ code that parses command strings and does some specialized
> scanning that I would like to port from visual C++ to ILE. These functions
> accept pointers as arguments, some that are pointers to const data.  In some
> cases prototyping as %string works, but other times simply passing a pointer
> is best.
>

Steve, when you have C or C++ that takes a pointer to sometype, you have
a choice in RPG of
 - prototyping as a pointer by value, and passing a pointer to data of
sometype
 - prototyping as sometype by reference, possibly with CONST

Rather than try to take the address of your CONST parameter, you could
prototype the C function with the parameter type and CONST (and possibly
OPTIONS(*VARSIZE)), and then just pass the parameter.

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