What other languages use the same data model as Python?

[harrismh777]

Grant Edwards wrote:
>> We do not consider passing a pointer as*by value*  because its an
>> >  address; by definition, that is pass-by-reference.
> No, it isn't.  It's pass by value.  The fact that you are passing a
> value that is a pointer to another value is not relevent.
>

@ Edwards, &Schaathun

You are most definitely mistaken.   See:

http://publib.boulder.ibm.com/infocenter/comphelp/v8v101/index.jsp?topic=%2Fcom.ibm.xlcpp8a.doc%2Flanguage%2Fref%2Fcplr233.htm


I understand that semantically some people insist that when C receives 
parms as pointers that pass-by-reference is only being simulated.

But that is the silliness of this argument... because down in the guts 
of the ALU we only have direct and indirect memory addressing. Period.

You either pass a function the memory directly (value) or you pass the 
data indirectly (reference).

Everything above that is high-level semantics.


If I want to pass values to my C functions, I can.  If I want to pass 
references to my C functions, I can.

If I want to implement a C language that does not use pointers directly 
(hides them) I can implement pass by reference completely (on the 
surface). In fact, I can implement the C compiler so that pass by value 
is not allowed! [ it wouldn't look much like C, but its do-able ]


Everyone forgets that their high-level language is not 'really' what's 
working...   gcc does not produce machine code... it produces assembler 
instructions that are passed to a translator... you can interrupt the 
process and have it produce the assembly instructions so you can see 
them if you want to...  the point being, after all is said and done, all 
you can do with today's von Neumann processors is pass data directly 
(value) or indirectly (reference).

Everything else is semantics.