Re: Help with parameter passing

[Barbara Morris <bmorris@xxxxxxxxxx>]

"Christen, Duane J." wrote:
> 
> Barbara;
> This being a C function it expects a parm to be passed by value.
> If the C function prototype looks like this:
> 
> function(float *, .... )
> 
> Then you must pass a pointer to a float variable
> 
> If it looks like this:
> 
> function(float, .....
> 
> Then you must pass the float variable.
> 

Right.  But when you pass a pointer-to-a-float-variable by value, this
is exactly the same as passing a float variable by reference.  Since the
second one is the only one that RPG supports, it seems to me that it's
really the only valid interpretation of the C code.

Trying to do 'pointer-to-a-float-variable by value' in RPG, the best you
can come up with is 'pointer-to-anything by value'.

When porting between languages, the important thing is to to be as close
as possible semantically, not syntactically.